19896820

素因数分解:

$2^2\times 5^1\times {\mathrm{271}}^1\times {\mathrm{3671}}^1$

素因数の和:3951

約数の個数: 24

約数和(自身を含む): 41948928

約数和(自身を除く): 22052108

約数列:

[1, 2, 4, 5, 10, 20, 271, 542, 1084, 1355, 2710, 3671, 5420, 7342, 14684, 18355, 36710, 73420, 994841, 1989682, 3979364, 4974205, 9948410, 19896820]

約数ペア:

[(1, 19896820), (2, 9948410), (4, 4974205), (5, 3979364), (10, 1989682), (20, 994841), (271, 73420), (542, 36710), (1084, 18355), (1355, 14684), (2710, 7342), (3671, 5420)]