8397640

素因数分解:

$2^3\times 5^1\times {\mathrm{149}}^1\times {\mathrm{1409}}^1$

素因数の和:1569

約数の個数: 32

約数和(自身を含む): 19035000

約数和(自身を除く): 10637360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 149, 298, 596, 745, 1192, 1409, 1490, 2818, 2980, 5636, 5960, 7045, 11272, 14090, 28180, 56360, 209941, 419882, 839764, 1049705, 1679528, 2099410, 4198820, 8397640]

約数ペア:

[(1, 8397640), (2, 4198820), (4, 2099410), (5, 1679528), (8, 1049705), (10, 839764), (20, 419882), (40, 209941), (149, 56360), (298, 28180), (596, 14090), (745, 11272), (1192, 7045), (1409, 5960), (1490, 5636), (2818, 2980)]