64271380

素因数分解:

$2^2\times 5^1\times {\mathrm{1531}}^1\times {\mathrm{2099}}^1$

素因数の和:3639

約数の個数: 24

約数和(自身を含む): 135122400

約数和(自身を除く): 70851020

約数列:

[1, 2, 4, 5, 10, 20, 1531, 2099, 3062, 4198, 6124, 7655, 8396, 10495, 15310, 20990, 30620, 41980, 3213569, 6427138, 12854276, 16067845, 32135690, 64271380]

約数ペア:

[(1, 64271380), (2, 32135690), (4, 16067845), (5, 12854276), (10, 6427138), (20, 3213569), (1531, 41980), (2099, 30620), (3062, 20990), (4198, 15310), (6124, 10495), (7655, 8396)]