20725617920

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{31}}^2\times {\mathrm{83}}^1$

素因数の和:202

約数の個数: 432

約数和(自身を含む): 61377886080

約数和(自身を除く): 40652268160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 29, 31, 32, 35, 40, 56, 58, 62, 64, 70, 80, 83, 112, 116, 124, 128, 140, 145, 155, 160, 166, 203, 217, 224, 232, 248, 256, 280, 290, 310, 320, 332, 406, 415, 434, 448, 464, 496, 560, 580, 581, 620, 640, 664, 812, 830, 868, 896, 899, 928, 961, 992, 1015, 1085, 1120, 1160, 1162, 1240, 1280, 1328, 1624, 1660, 1736, 1792, 1798, 1856, 1922, 1984, 2030, 2170, 2240, 2320, 2324, 2407, 2480, 2573, 2656, 2905, 3248, 3320, 3472, 3596, 3712, 3844, 3968, 4060, 4340, 4480, 4495, 4640, 4648, 4805, 4814, 4960, 5146, 5312, 5810, 6293, 6496, 6640, 6727, 6944, 7192, 7424, 7688, 7936, 8120, 8680, 8960, 8990, 9280, 9296, 9610, 9628, 9920, 10292, 10624, 11620, 12035, 12586, 12865, 12992, 13280, 13454, 13888, 14384, 15376, 16240, 16849, 17360, 17980, 18011, 18560, 18592, 19220, 19256, 19840, 20584, 21248, 23240, 24070, 25172, 25730, 25984, 26560, 26908, 27776, 27869, 28768, 30752, 31465, 32480, 33635, 33698, 34720, 35960, 36022, 37120, 37184, 38440, 38512, 39680, 41168, 46480, 48140, 50344, 51460, 51968, 53120, 53816, 55552, 55738, 57536, 61504, 62930, 64960, 67270, 67396, 69440, 71920, 72044, 74368, 74617, 76880, 77024, 79763, 82336, 84245, 90055, 92960, 96280, 100688, 102920, 106240, 107632, 111476, 115072, 123008, 125860, 129920, 134540, 134792, 138880, 139345, 143840, 144088, 148736, 149234, 153760, 154048, 159526, 164672, 168490, 180110, 185920, 192560, 195083, 201376, 205840, 215264, 222952, 230144, 246016, 251720, 259840, 269080, 269584, 277760, 278690, 287680, 288176, 298468, 307520, 308096, 319052, 329344, 336980, 360220, 371840, 373085, 385120, 390166, 398815, 402752, 411680, 430528, 445904, 503440, 522319, 538160, 539168, 557380, 558341, 575360, 576352, 596936, 615040, 616192, 638104, 658688, 673960, 720440, 743680, 746170, 770240, 780332, 797630, 805504, 823360, 861056, 891808, 975415, 1006880, 1044638, 1076320, 1078336, 1114760, 1116682, 1150720, 1152704, 1193872, 1230080, 1276208, 1347920, 1440880, 1492340, 1540480, 1560664, 1595260, 1611008, 1646720, 1722112, 1783616, 1950830, 2013760, 2089276, 2152640, 2156672, 2229520, 2233364, 2305408, 2313127, 2387744, 2552416, 2611595, 2695840, 2791705, 2881760, 2984680, 3080960, 3121328, 3190520, 3293440, 3567232, 3901660, 4027520, 4178552, 4305280, 4313344, 4459040, 4466728, 4610816, 4626254, 4775488, 5104832, 5223190, 5391680, 5583410, 5763520, 5969360, 6242656, 6381040, 7134464, 7803320, 8055040, 8357104, 8610560, 8918080, 8933456, 9252508, 9550976, 10209664, 10446380, 10783360, 11166820, 11527040, 11565635, 11938720, 12485312, 12762080, 15606640, 16191889, 16714208, 17836160, 17866912, 18505016, 19101952, 20419328, 20892760, 21566720, 22333640, 23054080, 23131270, 23877440, 24970624, 25524160, 31213280, 32383778, 33428416, 35672320, 35733824, 37010032, 41785520, 44667280, 46262540, 47754880, 49941248, 51048320, 62426560, 64767556, 66856832, 71467648, 74020064, 80959445, 83571040, 89334560, 92525080, 95509760, 102096640, 124853120, 129535112, 133713664, 142935296, 148040128, 161918890, 167142080, 178669120, 185050160, 249706240, 259070224, 296080256, 323837780, 334284160, 357338240, 370100320, 518140448, 592160512, 647675560, 668568320, 714676480, 740200640, 1036280896, 1295351120, 1480401280, 2072561792, 2590702240, 2960802560, 4145123584, 5181404480, 10362808960, 20725617920]

約数ペア:

[(1, 20725617920), (2, 10362808960), (4, 5181404480), (5, 4145123584), (7, 2960802560), (8, 2590702240), (10, 2072561792), (14, 1480401280), (16, 1295351120), (20, 1036280896), (28, 740200640), (29, 714676480), (31, 668568320), (32, 647675560), (35, 592160512), (40, 518140448), (56, 370100320), (58, 357338240), (62, 334284160), (64, 323837780), (70, 296080256), (80, 259070224), (83, 249706240), (112, 185050160), (116, 178669120), (124, 167142080), (128, 161918890), (140, 148040128), (145, 142935296), (155, 133713664), (160, 129535112), (166, 124853120), (203, 102096640), (217, 95509760), (224, 92525080), (232, 89334560), (248, 83571040), (256, 80959445), (280, 74020064), (290, 71467648), (310, 66856832), (320, 64767556), (332, 62426560), (406, 51048320), (415, 49941248), (434, 47754880), (448, 46262540), (464, 44667280), (496, 41785520), (560, 37010032), (580, 35733824), (581, 35672320), (620, 33428416), (640, 32383778), (664, 31213280), (812, 25524160), (830, 24970624), (868, 23877440), (896, 23131270), (899, 23054080), (928, 22333640), (961, 21566720), (992, 20892760), (1015, 20419328), (1085, 19101952), (1120, 18505016), (1160, 17866912), (1162, 17836160), (1240, 16714208), (1280, 16191889), (1328, 15606640), (1624, 12762080), (1660, 12485312), (1736, 11938720), (1792, 11565635), (1798, 11527040), (1856, 11166820), (1922, 10783360), (1984, 10446380), (2030, 10209664), (2170, 9550976), (2240, 9252508), (2320, 8933456), (2324, 8918080), (2407, 8610560), (2480, 8357104), (2573, 8055040), (2656, 7803320), (2905, 7134464), (3248, 6381040), (3320, 6242656), (3472, 5969360), (3596, 5763520), (3712, 5583410), (3844, 5391680), (3968, 5223190), (4060, 5104832), (4340, 4775488), (4480, 4626254), (4495, 4610816), (4640, 4466728), (4648, 4459040), (4805, 4313344), (4814, 4305280), (4960, 4178552), (5146, 4027520), (5312, 3901660), (5810, 3567232), (6293, 3293440), (6496, 3190520), (6640, 3121328), (6727, 3080960), (6944, 2984680), (7192, 2881760), (7424, 2791705), (7688, 2695840), (7936, 2611595), (8120, 2552416), (8680, 2387744), (8960, 2313127), (8990, 2305408), (9280, 2233364), (9296, 2229520), (9610, 2156672), (9628, 2152640), (9920, 2089276), (10292, 2013760), (10624, 1950830), (11620, 1783616), (12035, 1722112), (12586, 1646720), (12865, 1611008), (12992, 1595260), (13280, 1560664), (13454, 1540480), (13888, 1492340), (14384, 1440880), (15376, 1347920), (16240, 1276208), (16849, 1230080), (17360, 1193872), (17980, 1152704), (18011, 1150720), (18560, 1116682), (18592, 1114760), (19220, 1078336), (19256, 1076320), (19840, 1044638), (20584, 1006880), (21248, 975415), (23240, 891808), (24070, 861056), (25172, 823360), (25730, 805504), (25984, 797630), (26560, 780332), (26908, 770240), (27776, 746170), (27869, 743680), (28768, 720440), (30752, 673960), (31465, 658688), (32480, 638104), (33635, 616192), (33698, 615040), (34720, 596936), (35960, 576352), (36022, 575360), (37120, 558341), (37184, 557380), (38440, 539168), (38512, 538160), (39680, 522319), (41168, 503440), (46480, 445904), (48140, 430528), (50344, 411680), (51460, 402752), (51968, 398815), (53120, 390166), (53816, 385120), (55552, 373085), (55738, 371840), (57536, 360220), (61504, 336980), (62930, 329344), (64960, 319052), (67270, 308096), (67396, 307520), (69440, 298468), (71920, 288176), (72044, 287680), (74368, 278690), (74617, 277760), (76880, 269584), (77024, 269080), (79763, 259840), (82336, 251720), (84245, 246016), (90055, 230144), (92960, 222952), (96280, 215264), (100688, 205840), (102920, 201376), (106240, 195083), (107632, 192560), (111476, 185920), (115072, 180110), (123008, 168490), (125860, 164672), (129920, 159526), (134540, 154048), (134792, 153760), (138880, 149234), (139345, 148736), (143840, 144088)]