53971640

素因数分解:

$2^3\times 5^1\times {\mathrm{409}}^1\times {\mathrm{3299}}^1$

素因数の和:3719

約数の個数: 32

約数和(自身を含む): 121770000

約数和(自身を除く): 67798360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 409, 818, 1636, 2045, 3272, 3299, 4090, 6598, 8180, 13196, 16360, 16495, 26392, 32990, 65980, 131960, 1349291, 2698582, 5397164, 6746455, 10794328, 13492910, 26985820, 53971640]

約数ペア:

[(1, 53971640), (2, 26985820), (4, 13492910), (5, 10794328), (8, 6746455), (10, 5397164), (20, 2698582), (40, 1349291), (409, 131960), (818, 65980), (1636, 32990), (2045, 26392), (3272, 16495), (3299, 16360), (4090, 13196), (6598, 8180)]