65381780

素因数分解:

$2^2\times 5^1\times {\mathrm{1637}}^1\times {\mathrm{1997}}^1$

素因数の和:3643

約数の個数: 24

約数和(自身を含む): 137454408

約数和(自身を除く): 72072628

約数列:

[1, 2, 4, 5, 10, 20, 1637, 1997, 3274, 3994, 6548, 7988, 8185, 9985, 16370, 19970, 32740, 39940, 3269089, 6538178, 13076356, 16345445, 32690890, 65381780]

約数ペア:

[(1, 65381780), (2, 32690890), (4, 16345445), (5, 13076356), (10, 6538178), (20, 3269089), (1637, 39940), (1997, 32740), (3274, 19970), (3994, 16370), (6548, 9985), (7988, 8185)]