12639020

素因数分解:

$2^2\times 5^1\times {\mathrm{163}}^1\times {\mathrm{3877}}^1$

素因数の和:4049

約数の個数: 24

約数和(自身を含む): 26711664

約数和(自身を除く): 14072644

約数列:

[1, 2, 4, 5, 10, 20, 163, 326, 652, 815, 1630, 3260, 3877, 7754, 15508, 19385, 38770, 77540, 631951, 1263902, 2527804, 3159755, 6319510, 12639020]

約数ペア:

[(1, 12639020), (2, 6319510), (4, 3159755), (5, 2527804), (10, 1263902), (20, 631951), (163, 77540), (326, 38770), (652, 19385), (815, 15508), (1630, 7754), (3260, 3877)]