393375340

素因数分解:

$2^2\times 5^1\times {\mathrm{19668767}}^1$

素因数の和:19668776

約数の個数: 12

約数和(自身を含む): 826088256

約数和(自身を除く): 432712916

約数列:

[1, 2, 4, 5, 10, 20, 19668767, 39337534, 78675068, 98343835, 196687670, 393375340]

約数ペア:

[(1, 393375340), (2, 196687670), (4, 98343835), (5, 78675068), (10, 39337534), (20, 19668767)]