21000750160

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{709}}^1\times {\mathrm{1499}}^1$

素因数の和:2253

約数の個数: 160

約数和(自身を含む): 55465200000

約数和(自身を除く): 34464449840

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 19, 20, 26, 38, 40, 52, 65, 76, 80, 95, 104, 130, 152, 190, 208, 247, 260, 304, 380, 494, 520, 709, 760, 988, 1040, 1235, 1418, 1499, 1520, 1976, 2470, 2836, 2998, 3545, 3952, 4940, 5672, 5996, 7090, 7495, 9217, 9880, 11344, 11992, 13471, 14180, 14990, 18434, 19487, 19760, 23984, 26942, 28360, 28481, 29980, 36868, 38974, 46085, 53884, 56720, 56962, 59960, 67355, 73736, 77948, 92170, 97435, 107768, 113924, 119920, 134710, 142405, 147472, 155896, 175123, 184340, 194870, 215536, 227848, 269420, 284810, 311792, 350246, 368680, 370253, 389740, 455696, 538840, 569620, 700492, 737360, 740506, 779480, 875615, 1062791, 1077680, 1139240, 1400984, 1481012, 1558960, 1751230, 1851265, 2125582, 2278480, 2801968, 2962024, 3502460, 3702530, 4251164, 5313955, 5924048, 7004920, 7405060, 8502328, 10627910, 13816283, 14009840, 14810120, 17004656, 20193029, 21255820, 27632566, 29620240, 40386058, 42511640, 55265132, 69081415, 80772116, 85023280, 100965145, 110530264, 138162830, 161544232, 201930290, 221060528, 262509377, 276325660, 323088464, 403860580, 525018754, 552651320, 807721160, 1050037508, 1105302640, 1312546885, 1615442320, 2100075016, 2625093770, 4200150032, 5250187540, 10500375080, 21000750160]

約数ペア:

[(1, 21000750160), (2, 10500375080), (4, 5250187540), (5, 4200150032), (8, 2625093770), (10, 2100075016), (13, 1615442320), (16, 1312546885), (19, 1105302640), (20, 1050037508), (26, 807721160), (38, 552651320), (40, 525018754), (52, 403860580), (65, 323088464), (76, 276325660), (80, 262509377), (95, 221060528), (104, 201930290), (130, 161544232), (152, 138162830), (190, 110530264), (208, 100965145), (247, 85023280), (260, 80772116), (304, 69081415), (380, 55265132), (494, 42511640), (520, 40386058), (709, 29620240), (760, 27632566), (988, 21255820), (1040, 20193029), (1235, 17004656), (1418, 14810120), (1499, 14009840), (1520, 13816283), (1976, 10627910), (2470, 8502328), (2836, 7405060), (2998, 7004920), (3545, 5924048), (3952, 5313955), (4940, 4251164), (5672, 3702530), (5996, 3502460), (7090, 2962024), (7495, 2801968), (9217, 2278480), (9880, 2125582), (11344, 1851265), (11992, 1751230), (13471, 1558960), (14180, 1481012), (14990, 1400984), (18434, 1139240), (19487, 1077680), (19760, 1062791), (23984, 875615), (26942, 779480), (28360, 740506), (28481, 737360), (29980, 700492), (36868, 569620), (38974, 538840), (46085, 455696), (53884, 389740), (56720, 370253), (56962, 368680), (59960, 350246), (67355, 311792), (73736, 284810), (77948, 269420), (92170, 227848), (97435, 215536), (107768, 194870), (113924, 184340), (119920, 175123), (134710, 155896), (142405, 147472)]