20465280

素因数分解:

$2^7\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1$

素因数の和:72

約数の個数: 384

約数和(自身を含む): 85924800

約数和(自身を除く): 65459520

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 16, 17, 18, 19, 20, 22, 24, 30, 32, 33, 34, 36, 38, 40, 44, 45, 48, 51, 55, 57, 60, 64, 66, 68, 72, 76, 80, 85, 88, 90, 95, 96, 99, 102, 110, 114, 120, 128, 132, 136, 144, 152, 153, 160, 165, 170, 171, 176, 180, 187, 190, 192, 198, 204, 209, 220, 228, 240, 255, 264, 272, 285, 288, 304, 306, 320, 323, 330, 340, 342, 352, 360, 374, 380, 384, 396, 408, 418, 440, 456, 480, 495, 510, 528, 544, 561, 570, 576, 608, 612, 627, 640, 646, 660, 680, 684, 704, 720, 748, 760, 765, 792, 816, 836, 855, 880, 912, 935, 960, 969, 990, 1020, 1045, 1056, 1088, 1122, 1140, 1152, 1216, 1224, 1254, 1292, 1320, 1360, 1368, 1408, 1440, 1496, 1520, 1530, 1584, 1615, 1632, 1672, 1683, 1710, 1760, 1824, 1870, 1881, 1920, 1938, 1980, 2040, 2090, 2112, 2176, 2244, 2280, 2432, 2448, 2508, 2584, 2640, 2720, 2736, 2805, 2880, 2907, 2992, 3040, 3060, 3135, 3168, 3230, 3264, 3344, 3366, 3420, 3520, 3553, 3648, 3740, 3762, 3876, 3960, 4080, 4180, 4224, 4488, 4560, 4845, 4896, 5016, 5168, 5280, 5440, 5472, 5610, 5760, 5814, 5984, 6080, 6120, 6270, 6336, 6460, 6528, 6688, 6732, 6840, 7040, 7106, 7296, 7480, 7524, 7752, 7920, 8160, 8360, 8415, 8976, 9120, 9405, 9690, 9792, 10032, 10336, 10560, 10659, 10880, 10944, 11220, 11628, 11968, 12160, 12240, 12540, 12672, 12920, 13376, 13464, 13680, 14212, 14535, 14960, 15048, 15504, 15840, 16320, 16720, 16830, 17765, 17952, 18240, 18810, 19380, 19584, 20064, 20672, 21120, 21318, 21888, 22440, 23256, 23936, 24480, 25080, 25840, 26752, 26928, 27360, 28424, 29070, 29920, 30096, 31008, 31680, 31977, 32640, 33440, 33660, 35530, 35904, 36480, 37620, 38760, 40128, 41344, 42636, 44880, 46512, 48960, 50160, 51680, 53295, 53856, 54720, 56848, 58140, 59840, 60192, 62016, 63360, 63954, 66880, 67320, 71060, 71808, 75240, 77520, 80256, 85272, 89760, 93024, 97920, 100320, 103360, 106590, 107712, 109440, 113696, 116280, 119680, 120384, 124032, 127908, 133760, 134640, 142120, 150480, 155040, 159885, 170544, 179520, 186048, 200640, 206720, 213180, 215424, 227392, 232560, 240768, 255816, 269280, 284240, 300960, 310080, 319770, 341088, 359040, 372096, 401280, 426360, 454784, 465120, 511632, 538560, 568480, 601920, 620160, 639540, 682176, 852720, 930240, 1023264, 1077120, 1136960, 1203840, 1279080, 1364352, 1705440, 1860480, 2046528, 2273920, 2558160, 3410880, 4093056, 5116320, 6821760, 10232640, 20465280]

約数ペア:

[(1, 20465280), (2, 10232640), (3, 6821760), (4, 5116320), (5, 4093056), (6, 3410880), (8, 2558160), (9, 2273920), (10, 2046528), (11, 1860480), (12, 1705440), (15, 1364352), (16, 1279080), (17, 1203840), (18, 1136960), (19, 1077120), (20, 1023264), (22, 930240), (24, 852720), (30, 682176), (32, 639540), (33, 620160), (34, 601920), (36, 568480), (38, 538560), (40, 511632), (44, 465120), (45, 454784), (48, 426360), (51, 401280), (55, 372096), (57, 359040), (60, 341088), (64, 319770), (66, 310080), (68, 300960), (72, 284240), (76, 269280), (80, 255816), (85, 240768), (88, 232560), (90, 227392), (95, 215424), (96, 213180), (99, 206720), (102, 200640), (110, 186048), (114, 179520), (120, 170544), (128, 159885), (132, 155040), (136, 150480), (144, 142120), (152, 134640), (153, 133760), (160, 127908), (165, 124032), (170, 120384), (171, 119680), (176, 116280), (180, 113696), (187, 109440), (190, 107712), (192, 106590), (198, 103360), (204, 100320), (209, 97920), (220, 93024), (228, 89760), (240, 85272), (255, 80256), (264, 77520), (272, 75240), (285, 71808), (288, 71060), (304, 67320), (306, 66880), (320, 63954), (323, 63360), (330, 62016), (340, 60192), (342, 59840), (352, 58140), (360, 56848), (374, 54720), (380, 53856), (384, 53295), (396, 51680), (408, 50160), (418, 48960), (440, 46512), (456, 44880), (480, 42636), (495, 41344), (510, 40128), (528, 38760), (544, 37620), (561, 36480), (570, 35904), (576, 35530), (608, 33660), (612, 33440), (627, 32640), (640, 31977), (646, 31680), (660, 31008), (680, 30096), (684, 29920), (704, 29070), (720, 28424), (748, 27360), (760, 26928), (765, 26752), (792, 25840), (816, 25080), (836, 24480), (855, 23936), (880, 23256), (912, 22440), (935, 21888), (960, 21318), (969, 21120), (990, 20672), (1020, 20064), (1045, 19584), (1056, 19380), (1088, 18810), (1122, 18240), (1140, 17952), (1152, 17765), (1216, 16830), (1224, 16720), (1254, 16320), (1292, 15840), (1320, 15504), (1360, 15048), (1368, 14960), (1408, 14535), (1440, 14212), (1496, 13680), (1520, 13464), (1530, 13376), (1584, 12920), (1615, 12672), (1632, 12540), (1672, 12240), (1683, 12160), (1710, 11968), (1760, 11628), (1824, 11220), (1870, 10944), (1881, 10880), (1920, 10659), (1938, 10560), (1980, 10336), (2040, 10032), (2090, 9792), (2112, 9690), (2176, 9405), (2244, 9120), (2280, 8976), (2432, 8415), (2448, 8360), (2508, 8160), (2584, 7920), (2640, 7752), (2720, 7524), (2736, 7480), (2805, 7296), (2880, 7106), (2907, 7040), (2992, 6840), (3040, 6732), (3060, 6688), (3135, 6528), (3168, 6460), (3230, 6336), (3264, 6270), (3344, 6120), (3366, 6080), (3420, 5984), (3520, 5814), (3553, 5760), (3648, 5610), (3740, 5472), (3762, 5440), (3876, 5280), (3960, 5168), (4080, 5016), (4180, 4896), (4224, 4845), (4488, 4560)]