64648420

素因数分解:

$2^2\times 5^1\times {\mathrm{353}}^1\times {\mathrm{9157}}^1$

素因数の和:9519

約数の個数: 24

約数和(自身を含む): 136161144

約数和(自身を除く): 71512724

約数列:

[1, 2, 4, 5, 10, 20, 353, 706, 1412, 1765, 3530, 7060, 9157, 18314, 36628, 45785, 91570, 183140, 3232421, 6464842, 12929684, 16162105, 32324210, 64648420]

約数ペア:

[(1, 64648420), (2, 32324210), (4, 16162105), (5, 12929684), (10, 6464842), (20, 3232421), (353, 183140), (706, 91570), (1412, 45785), (1765, 36628), (3530, 18314), (7060, 9157)]