25796560

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{7499}}^1$

素因数の和:7555

約数の個数: 40

約数和(自身を含む): 61380000

約数和(自身を除く): 35583440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 7499, 14998, 29996, 37495, 59992, 74990, 119984, 149980, 299960, 322457, 599920, 644914, 1289828, 1612285, 2579656, 3224570, 5159312, 6449140, 12898280, 25796560]

約数ペア:

[(1, 25796560), (2, 12898280), (4, 6449140), (5, 5159312), (8, 3224570), (10, 2579656), (16, 1612285), (20, 1289828), (40, 644914), (43, 599920), (80, 322457), (86, 299960), (172, 149980), (215, 119984), (344, 74990), (430, 59992), (688, 37495), (860, 29996), (1720, 14998), (3440, 7499)]