2791640

素因数分解:

$2^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{691}}^1$

素因数の和:803

約数の個数: 32

約数和(自身を含む): 6352560

約数和(自身を除く): 3560920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 101, 202, 404, 505, 691, 808, 1010, 1382, 2020, 2764, 3455, 4040, 5528, 6910, 13820, 27640, 69791, 139582, 279164, 348955, 558328, 697910, 1395820, 2791640]

約数ペア:

[(1, 2791640), (2, 1395820), (4, 697910), (5, 558328), (8, 348955), (10, 279164), (20, 139582), (40, 69791), (101, 27640), (202, 13820), (404, 6910), (505, 5528), (691, 4040), (808, 3455), (1010, 2764), (1382, 2020)]