68393860

素因数分解:

$2^2\times 5^1\times {\mathrm{1637}}^1\times {\mathrm{2089}}^1$

素因数の和:3735

約数の個数: 24

約数和(自身を含む): 143783640

約数和(自身を除く): 75389780

約数列:

[1, 2, 4, 5, 10, 20, 1637, 2089, 3274, 4178, 6548, 8185, 8356, 10445, 16370, 20890, 32740, 41780, 3419693, 6839386, 13678772, 17098465, 34196930, 68393860]

約数ペア:

[(1, 68393860), (2, 34196930), (4, 17098465), (5, 13678772), (10, 6839386), (20, 3419693), (1637, 41780), (2089, 32740), (3274, 20890), (4178, 16370), (6548, 10445), (8185, 8356)]