3986980

素因数分解:

$2^2\times 5^1\times {\mathrm{163}}^1\times {\mathrm{1223}}^1$

素因数の和:1395

約数の個数: 24

約数和(自身を含む): 8430912

約数和(自身を除く): 4443932

約数列:

[1, 2, 4, 5, 10, 20, 163, 326, 652, 815, 1223, 1630, 2446, 3260, 4892, 6115, 12230, 24460, 199349, 398698, 797396, 996745, 1993490, 3986980]

約数ペア:

[(1, 3986980), (2, 1993490), (4, 996745), (5, 797396), (10, 398698), (20, 199349), (163, 24460), (326, 12230), (652, 6115), (815, 4892), (1223, 3260), (1630, 2446)]