399502680

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{139}}^1\times {\mathrm{557}}^1$

素因数の和:753

約数の個数: 128

約数和(自身を含む): 1237420800

約数和(自身を除く): 837918120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 43, 60, 86, 120, 129, 139, 172, 215, 258, 278, 344, 417, 430, 516, 556, 557, 645, 695, 834, 860, 1032, 1112, 1114, 1290, 1390, 1668, 1671, 1720, 2085, 2228, 2580, 2780, 2785, 3336, 3342, 4170, 4456, 5160, 5560, 5570, 5977, 6684, 8340, 8355, 11140, 11954, 13368, 16680, 16710, 17931, 22280, 23908, 23951, 29885, 33420, 35862, 47816, 47902, 59770, 66840, 71724, 71853, 77423, 89655, 95804, 119540, 119755, 143448, 143706, 154846, 179310, 191608, 232269, 239080, 239510, 287412, 309692, 358620, 359265, 387115, 464538, 479020, 574824, 619384, 717240, 718530, 774230, 929076, 958040, 1161345, 1437060, 1548460, 1858152, 2322690, 2874120, 3096920, 3329189, 4645380, 6658378, 9290760, 9987567, 13316756, 16645945, 19975134, 26633512, 33291890, 39950268, 49937835, 66583780, 79900536, 99875670, 133167560, 199751340, 399502680]

約数ペア:

[(1, 399502680), (2, 199751340), (3, 133167560), (4, 99875670), (5, 79900536), (6, 66583780), (8, 49937835), (10, 39950268), (12, 33291890), (15, 26633512), (20, 19975134), (24, 16645945), (30, 13316756), (40, 9987567), (43, 9290760), (60, 6658378), (86, 4645380), (120, 3329189), (129, 3096920), (139, 2874120), (172, 2322690), (215, 1858152), (258, 1548460), (278, 1437060), (344, 1161345), (417, 958040), (430, 929076), (516, 774230), (556, 718530), (557, 717240), (645, 619384), (695, 574824), (834, 479020), (860, 464538), (1032, 387115), (1112, 359265), (1114, 358620), (1290, 309692), (1390, 287412), (1668, 239510), (1671, 239080), (1720, 232269), (2085, 191608), (2228, 179310), (2580, 154846), (2780, 143706), (2785, 143448), (3336, 119755), (3342, 119540), (4170, 95804), (4456, 89655), (5160, 77423), (5560, 71853), (5570, 71724), (5977, 66840), (6684, 59770), (8340, 47902), (8355, 47816), (11140, 35862), (11954, 33420), (13368, 29885), (16680, 23951), (16710, 23908), (17931, 22280)]