403990352

素因数分解:

$2^4\times {\mathrm{313}}^1\times {\mathrm{80669}}^1$

素因数の和:80990

約数の個数: 20

約数和(自身を含む): 785241780

約数和(自身を除く): 381251428

約数列:

[1, 2, 4, 8, 16, 313, 626, 1252, 2504, 5008, 80669, 161338, 322676, 645352, 1290704, 25249397, 50498794, 100997588, 201995176, 403990352]

約数ペア:

[(1, 403990352), (2, 201995176), (4, 100997588), (8, 50498794), (16, 25249397), (313, 1290704), (626, 645352), (1252, 322676), (2504, 161338), (5008, 80669)]