81770520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1$

素因数の和:146

約数の個数: 256

約数和(自身を含む): 287400960

約数和(自身を除く): 205630440

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 23, 24, 26, 30, 39, 40, 43, 46, 52, 53, 60, 65, 69, 78, 86, 92, 104, 106, 115, 120, 129, 130, 138, 156, 159, 172, 184, 195, 212, 215, 230, 258, 260, 265, 276, 299, 312, 318, 344, 345, 390, 424, 430, 460, 516, 520, 530, 552, 559, 598, 636, 645, 689, 690, 780, 795, 860, 897, 920, 989, 1032, 1060, 1118, 1196, 1219, 1272, 1290, 1378, 1380, 1495, 1560, 1590, 1677, 1720, 1794, 1978, 2067, 2120, 2236, 2279, 2392, 2438, 2580, 2756, 2760, 2795, 2967, 2990, 3180, 3354, 3445, 3588, 3657, 3956, 4134, 4472, 4485, 4558, 4876, 4945, 5160, 5512, 5590, 5934, 5980, 6095, 6360, 6708, 6837, 6890, 7176, 7314, 7912, 8268, 8385, 8970, 9116, 9752, 9890, 10335, 11180, 11395, 11868, 11960, 12190, 12857, 13416, 13674, 13780, 14628, 14835, 15847, 16536, 16770, 17940, 18232, 18285, 19780, 20670, 22360, 22790, 23736, 24380, 25714, 27348, 27560, 29256, 29627, 29670, 31694, 33540, 34185, 35880, 36570, 38571, 39560, 41340, 45580, 47541, 48760, 51428, 52417, 54696, 59254, 59340, 63388, 64285, 67080, 68370, 73140, 77142, 79235, 82680, 88881, 91160, 95082, 102856, 104834, 118508, 118680, 126776, 128570, 136740, 146280, 148135, 154284, 157251, 158470, 177762, 190164, 192855, 209668, 237016, 237705, 257140, 262085, 273480, 296270, 308568, 314502, 316940, 355524, 380328, 385710, 419336, 444405, 475410, 514280, 524170, 592540, 629004, 633880, 681421, 711048, 771420, 786255, 888810, 950820, 1048340, 1185080, 1258008, 1362842, 1542840, 1572510, 1777620, 1901640, 2044263, 2096680, 2725684, 3145020, 3407105, 3555240, 4088526, 5451368, 6290040, 6814210, 8177052, 10221315, 13628420, 16354104, 20442630, 27256840, 40885260, 81770520]

約数ペア:

[(1, 81770520), (2, 40885260), (3, 27256840), (4, 20442630), (5, 16354104), (6, 13628420), (8, 10221315), (10, 8177052), (12, 6814210), (13, 6290040), (15, 5451368), (20, 4088526), (23, 3555240), (24, 3407105), (26, 3145020), (30, 2725684), (39, 2096680), (40, 2044263), (43, 1901640), (46, 1777620), (52, 1572510), (53, 1542840), (60, 1362842), (65, 1258008), (69, 1185080), (78, 1048340), (86, 950820), (92, 888810), (104, 786255), (106, 771420), (115, 711048), (120, 681421), (129, 633880), (130, 629004), (138, 592540), (156, 524170), (159, 514280), (172, 475410), (184, 444405), (195, 419336), (212, 385710), (215, 380328), (230, 355524), (258, 316940), (260, 314502), (265, 308568), (276, 296270), (299, 273480), (312, 262085), (318, 257140), (344, 237705), (345, 237016), (390, 209668), (424, 192855), (430, 190164), (460, 177762), (516, 158470), (520, 157251), (530, 154284), (552, 148135), (559, 146280), (598, 136740), (636, 128570), (645, 126776), (689, 118680), (690, 118508), (780, 104834), (795, 102856), (860, 95082), (897, 91160), (920, 88881), (989, 82680), (1032, 79235), (1060, 77142), (1118, 73140), (1196, 68370), (1219, 67080), (1272, 64285), (1290, 63388), (1378, 59340), (1380, 59254), (1495, 54696), (1560, 52417), (1590, 51428), (1677, 48760), (1720, 47541), (1794, 45580), (1978, 41340), (2067, 39560), (2120, 38571), (2236, 36570), (2279, 35880), (2392, 34185), (2438, 33540), (2580, 31694), (2756, 29670), (2760, 29627), (2795, 29256), (2967, 27560), (2990, 27348), (3180, 25714), (3354, 24380), (3445, 23736), (3588, 22790), (3657, 22360), (3956, 20670), (4134, 19780), (4472, 18285), (4485, 18232), (4558, 17940), (4876, 16770), (4945, 16536), (5160, 15847), (5512, 14835), (5590, 14628), (5934, 13780), (5980, 13674), (6095, 13416), (6360, 12857), (6708, 12190), (6837, 11960), (6890, 11868), (7176, 11395), (7314, 11180), (7912, 10335), (8268, 9890), (8385, 9752), (8970, 9116)]