2013125680

素因数分解:

$2^4\times 5^1\times {\mathrm{211}}^1\times {\mathrm{239}}^1\times {\mathrm{499}}^1$

素因数の和:962

約数の個数: 80

約数和(自身を含む): 4731840000

約数和(自身を除く): 2718714320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 211, 239, 422, 478, 499, 844, 956, 998, 1055, 1195, 1688, 1912, 1996, 2110, 2390, 2495, 3376, 3824, 3992, 4220, 4780, 4990, 7984, 8440, 9560, 9980, 16880, 19120, 19960, 39920, 50429, 100858, 105289, 119261, 201716, 210578, 238522, 252145, 403432, 421156, 477044, 504290, 526445, 596305, 806864, 842312, 954088, 1008580, 1052890, 1192610, 1684624, 1908176, 2017160, 2105780, 2385220, 4034320, 4211560, 4770440, 8423120, 9540880, 25164071, 50328142, 100656284, 125820355, 201312568, 251640710, 402625136, 503281420, 1006562840, 2013125680]

約数ペア:

[(1, 2013125680), (2, 1006562840), (4, 503281420), (5, 402625136), (8, 251640710), (10, 201312568), (16, 125820355), (20, 100656284), (40, 50328142), (80, 25164071), (211, 9540880), (239, 8423120), (422, 4770440), (478, 4211560), (499, 4034320), (844, 2385220), (956, 2105780), (998, 2017160), (1055, 1908176), (1195, 1684624), (1688, 1192610), (1912, 1052890), (1996, 1008580), (2110, 954088), (2390, 842312), (2495, 806864), (3376, 596305), (3824, 526445), (3992, 504290), (4220, 477044), (4780, 421156), (4990, 403432), (7984, 252145), (8440, 238522), (9560, 210578), (9980, 201716), (16880, 119261), (19120, 105289), (19960, 100858), (39920, 50429)]