20707860480

素因数分解:

$2^{13}\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{431}}^1$

素因数の和:505

約数の個数: 448

約数和(自身を含む): 73379063808

約数和(自身を除く): 52671203328

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 20, 23, 24, 30, 32, 34, 40, 46, 48, 51, 60, 64, 68, 69, 80, 85, 92, 96, 102, 115, 120, 128, 136, 138, 160, 170, 184, 192, 204, 230, 240, 255, 256, 272, 276, 320, 340, 345, 368, 384, 391, 408, 431, 460, 480, 510, 512, 544, 552, 640, 680, 690, 736, 768, 782, 816, 862, 920, 960, 1020, 1024, 1088, 1104, 1173, 1280, 1293, 1360, 1380, 1472, 1536, 1564, 1632, 1724, 1840, 1920, 1955, 2040, 2048, 2155, 2176, 2208, 2346, 2560, 2586, 2720, 2760, 2944, 3072, 3128, 3264, 3448, 3680, 3840, 3910, 4080, 4096, 4310, 4352, 4416, 4692, 5120, 5172, 5440, 5520, 5865, 5888, 6144, 6256, 6465, 6528, 6896, 7327, 7360, 7680, 7820, 8160, 8192, 8620, 8704, 8832, 9384, 9913, 10240, 10344, 10880, 11040, 11730, 11776, 12288, 12512, 12930, 13056, 13792, 14654, 14720, 15360, 15640, 16320, 17240, 17408, 17664, 18768, 19826, 20480, 20688, 21760, 21981, 22080, 23460, 23552, 24576, 25024, 25860, 26112, 27584, 29308, 29440, 29739, 30720, 31280, 32640, 34480, 34816, 35328, 36635, 37536, 39652, 40960, 41376, 43520, 43962, 44160, 46920, 47104, 49565, 50048, 51720, 52224, 55168, 58616, 58880, 59478, 61440, 62560, 65280, 68960, 69632, 70656, 73270, 75072, 79304, 82752, 87040, 87924, 88320, 93840, 94208, 99130, 100096, 103440, 104448, 109905, 110336, 117232, 117760, 118956, 122880, 125120, 130560, 137920, 139264, 141312, 146540, 148695, 150144, 158608, 165504, 168521, 174080, 175848, 176640, 187680, 188416, 198260, 200192, 206880, 208896, 219810, 220672, 234464, 235520, 237912, 250240, 261120, 275840, 282624, 293080, 297390, 300288, 317216, 331008, 337042, 348160, 351696, 353280, 375360, 396520, 400384, 413760, 417792, 439620, 441344, 468928, 471040, 475824, 500480, 505563, 522240, 551680, 565248, 586160, 594780, 600576, 634432, 662016, 674084, 696320, 703392, 706560, 750720, 793040, 800768, 827520, 842605, 879240, 882688, 937856, 942080, 951648, 1000960, 1011126, 1044480, 1103360, 1172320, 1189560, 1201152, 1268864, 1324032, 1348168, 1406784, 1413120, 1501440, 1586080, 1601536, 1655040, 1685210, 1758480, 1765376, 1875712, 1903296, 2001920, 2022252, 2088960, 2206720, 2344640, 2379120, 2402304, 2527815, 2537728, 2648064, 2696336, 2813568, 2826240, 3002880, 3172160, 3203072, 3310080, 3370420, 3516960, 3530752, 3751424, 3806592, 4003840, 4044504, 4413440, 4689280, 4758240, 4804608, 5055630, 5075456, 5296128, 5392672, 5627136, 6005760, 6344320, 6620160, 6740840, 7033920, 7502848, 7613184, 8007680, 8089008, 8826880, 9378560, 9516480, 9609216, 10111260, 10150912, 10592256, 10785344, 11254272, 12011520, 12688640, 13240320, 13481680, 14067840, 15005696, 15226368, 16015360, 16178016, 17653760, 18757120, 19032960, 20222520, 20301824, 21570688, 22508544, 24023040, 25377280, 26480640, 26963360, 28135680, 30011392, 30452736, 32356032, 37514240, 38065920, 40445040, 40603648, 43141376, 45017088, 48046080, 50754560, 52961280, 53926720, 56271360, 60022784, 60905472, 64712064, 75028480, 76131840, 80890080, 81207296, 86282752, 90034176, 101509120, 107853440, 112542720, 121810944, 129424128, 150056960, 152263680, 161780160, 172565504, 180068352, 203018240, 215706880, 225085440, 243621888, 258848256, 300113920, 304527360, 323560320, 345131008, 406036480, 431413760, 450170880, 517696512, 609054720, 647120640, 690262016, 862827520, 900341760, 1035393024, 1218109440, 1294241280, 1380524032, 1725655040, 2070786048, 2588482560, 3451310080, 4141572096, 5176965120, 6902620160, 10353930240, 20707860480]

約数ペア:

[(1, 20707860480), (2, 10353930240), (3, 6902620160), (4, 5176965120), (5, 4141572096), (6, 3451310080), (8, 2588482560), (10, 2070786048), (12, 1725655040), (15, 1380524032), (16, 1294241280), (17, 1218109440), (20, 1035393024), (23, 900341760), (24, 862827520), (30, 690262016), (32, 647120640), (34, 609054720), (40, 517696512), (46, 450170880), (48, 431413760), (51, 406036480), (60, 345131008), (64, 323560320), (68, 304527360), (69, 300113920), (80, 258848256), (85, 243621888), (92, 225085440), (96, 215706880), (102, 203018240), (115, 180068352), (120, 172565504), (128, 161780160), (136, 152263680), (138, 150056960), (160, 129424128), (170, 121810944), (184, 112542720), (192, 107853440), (204, 101509120), (230, 90034176), (240, 86282752), (255, 81207296), (256, 80890080), (272, 76131840), (276, 75028480), (320, 64712064), (340, 60905472), (345, 60022784), (368, 56271360), (384, 53926720), (391, 52961280), (408, 50754560), (431, 48046080), (460, 45017088), (480, 43141376), (510, 40603648), (512, 40445040), (544, 38065920), (552, 37514240), (640, 32356032), (680, 30452736), (690, 30011392), (736, 28135680), (768, 26963360), (782, 26480640), (816, 25377280), (862, 24023040), (920, 22508544), (960, 21570688), (1020, 20301824), (1024, 20222520), (1088, 19032960), (1104, 18757120), (1173, 17653760), (1280, 16178016), (1293, 16015360), (1360, 15226368), (1380, 15005696), (1472, 14067840), (1536, 13481680), (1564, 13240320), (1632, 12688640), (1724, 12011520), (1840, 11254272), (1920, 10785344), (1955, 10592256), (2040, 10150912), (2048, 10111260), (2155, 9609216), (2176, 9516480), (2208, 9378560), (2346, 8826880), (2560, 8089008), (2586, 8007680), (2720, 7613184), (2760, 7502848), (2944, 7033920), (3072, 6740840), (3128, 6620160), (3264, 6344320), (3448, 6005760), (3680, 5627136), (3840, 5392672), (3910, 5296128), (4080, 5075456), (4096, 5055630), (4310, 4804608), (4352, 4758240), (4416, 4689280), (4692, 4413440), (5120, 4044504), (5172, 4003840), (5440, 3806592), (5520, 3751424), (5865, 3530752), (5888, 3516960), (6144, 3370420), (6256, 3310080), (6465, 3203072), (6528, 3172160), (6896, 3002880), (7327, 2826240), (7360, 2813568), (7680, 2696336), (7820, 2648064), (8160, 2537728), (8192, 2527815), (8620, 2402304), (8704, 2379120), (8832, 2344640), (9384, 2206720), (9913, 2088960), (10240, 2022252), (10344, 2001920), (10880, 1903296), (11040, 1875712), (11730, 1765376), (11776, 1758480), (12288, 1685210), (12512, 1655040), (12930, 1601536), (13056, 1586080), (13792, 1501440), (14654, 1413120), (14720, 1406784), (15360, 1348168), (15640, 1324032), (16320, 1268864), (17240, 1201152), (17408, 1189560), (17664, 1172320), (18768, 1103360), (19826, 1044480), (20480, 1011126), (20688, 1000960), (21760, 951648), (21981, 942080), (22080, 937856), (23460, 882688), (23552, 879240), (24576, 842605), (25024, 827520), (25860, 800768), (26112, 793040), (27584, 750720), (29308, 706560), (29440, 703392), (29739, 696320), (30720, 674084), (31280, 662016), (32640, 634432), (34480, 600576), (34816, 594780), (35328, 586160), (36635, 565248), (37536, 551680), (39652, 522240), (40960, 505563), (41376, 500480), (43520, 475824), (43962, 471040), (44160, 468928), (46920, 441344), (47104, 439620), (49565, 417792), (50048, 413760), (51720, 400384), (52224, 396520), (55168, 375360), (58616, 353280), (58880, 351696), (59478, 348160), (61440, 337042), (62560, 331008), (65280, 317216), (68960, 300288), (69632, 297390), (70656, 293080), (73270, 282624), (75072, 275840), (79304, 261120), (82752, 250240), (87040, 237912), (87924, 235520), (88320, 234464), (93840, 220672), (94208, 219810), (99130, 208896), (100096, 206880), (103440, 200192), (104448, 198260), (109905, 188416), (110336, 187680), (117232, 176640), (117760, 175848), (118956, 174080), (122880, 168521), (125120, 165504), (130560, 158608), (137920, 150144), (139264, 148695), (141312, 146540)]