28287020

素因数分解:

$2^2\times 5^1\times {\mathrm{163}}^1\times {\mathrm{8677}}^1$

素因数の和:8849

約数の個数: 24

約数和(自身を含む): 59774064

約数和(自身を除く): 31487044

約数列:

[1, 2, 4, 5, 10, 20, 163, 326, 652, 815, 1630, 3260, 8677, 17354, 34708, 43385, 86770, 173540, 1414351, 2828702, 5657404, 7071755, 14143510, 28287020]

約数ペア:

[(1, 28287020), (2, 14143510), (4, 7071755), (5, 5657404), (10, 2828702), (20, 1414351), (163, 173540), (326, 86770), (652, 43385), (815, 34708), (1630, 17354), (3260, 8677)]