18464140

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{17419}}^1$

素因数の和:17481

約数の個数: 24

約数和(自身を含む): 39508560

約数和(自身を除く): 21044420

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 212, 265, 530, 1060, 17419, 34838, 69676, 87095, 174190, 348380, 923207, 1846414, 3692828, 4616035, 9232070, 18464140]

約数ペア:

[(1, 18464140), (2, 9232070), (4, 4616035), (5, 3692828), (10, 1846414), (20, 923207), (53, 348380), (106, 174190), (212, 87095), (265, 69676), (530, 34838), (1060, 17419)]