257865840

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{8329}}^1$

素因数の和:8391

約数の個数: 120

約数和(自身を含む): 886245360

約数和(自身を除く): 628379520

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 43, 45, 48, 60, 72, 80, 86, 90, 120, 129, 144, 172, 180, 215, 240, 258, 344, 360, 387, 430, 516, 645, 688, 720, 774, 860, 1032, 1290, 1548, 1720, 1935, 2064, 2580, 3096, 3440, 3870, 5160, 6192, 7740, 8329, 10320, 15480, 16658, 24987, 30960, 33316, 41645, 49974, 66632, 74961, 83290, 99948, 124935, 133264, 149922, 166580, 199896, 249870, 299844, 333160, 358147, 374805, 399792, 499740, 599688, 666320, 716294, 749610, 999480, 1074441, 1199376, 1432588, 1499220, 1790735, 1998960, 2148882, 2865176, 2998440, 3223323, 3581470, 4297764, 5372205, 5730352, 5996880, 6446646, 7162940, 8595528, 10744410, 12893292, 14325880, 16116615, 17191056, 21488820, 25786584, 28651760, 32233230, 42977640, 51573168, 64466460, 85955280, 128932920, 257865840]

約数ペア:

[(1, 257865840), (2, 128932920), (3, 85955280), (4, 64466460), (5, 51573168), (6, 42977640), (8, 32233230), (9, 28651760), (10, 25786584), (12, 21488820), (15, 17191056), (16, 16116615), (18, 14325880), (20, 12893292), (24, 10744410), (30, 8595528), (36, 7162940), (40, 6446646), (43, 5996880), (45, 5730352), (48, 5372205), (60, 4297764), (72, 3581470), (80, 3223323), (86, 2998440), (90, 2865176), (120, 2148882), (129, 1998960), (144, 1790735), (172, 1499220), (180, 1432588), (215, 1199376), (240, 1074441), (258, 999480), (344, 749610), (360, 716294), (387, 666320), (430, 599688), (516, 499740), (645, 399792), (688, 374805), (720, 358147), (774, 333160), (860, 299844), (1032, 249870), (1290, 199896), (1548, 166580), (1720, 149922), (1935, 133264), (2064, 124935), (2580, 99948), (3096, 83290), (3440, 74961), (3870, 66632), (5160, 49974), (6192, 41645), (7740, 33316), (8329, 30960), (10320, 24987), (15480, 16658)]