15998960

素因数分解:

$2^4\times 5^1\times {\mathrm{227}}^1\times {\mathrm{881}}^1$

素因数の和:1121

約数の個数: 40

約数和(自身を含む): 37403856

約数和(自身を除く): 21404896

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 227, 454, 881, 908, 1135, 1762, 1816, 2270, 3524, 3632, 4405, 4540, 7048, 8810, 9080, 14096, 17620, 18160, 35240, 70480, 199987, 399974, 799948, 999935, 1599896, 1999870, 3199792, 3999740, 7999480, 15998960]

約数ペア:

[(1, 15998960), (2, 7999480), (4, 3999740), (5, 3199792), (8, 1999870), (10, 1599896), (16, 999935), (20, 799948), (40, 399974), (80, 199987), (227, 70480), (454, 35240), (881, 18160), (908, 17620), (1135, 14096), (1762, 9080), (1816, 8810), (2270, 7048), (3524, 4540), (3632, 4405)]