247640

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{151}}^1$

素因数の和:203

約数の個数: 32

約数和(自身を含む): 574560

約数和(自身を除く): 326920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 151, 164, 205, 302, 328, 410, 604, 755, 820, 1208, 1510, 1640, 3020, 6040, 6191, 12382, 24764, 30955, 49528, 61910, 123820, 247640]

約数ペア:

[(1, 247640), (2, 123820), (4, 61910), (5, 49528), (8, 30955), (10, 24764), (20, 12382), (40, 6191), (41, 6040), (82, 3020), (151, 1640), (164, 1510), (205, 1208), (302, 820), (328, 755), (410, 604)]