7890242020

素因数分解:

$2^2\times 5^1\times {\mathrm{3251}}^1\times {\mathrm{121351}}^1$

素因数の和:124611

約数の個数: 24

約数和(自身を含む): 16574741568

約数和(自身を除く): 8684499548

約数列:

[1, 2, 4, 5, 10, 20, 3251, 6502, 13004, 16255, 32510, 65020, 121351, 242702, 485404, 606755, 1213510, 2427020, 394512101, 789024202, 1578048404, 1972560505, 3945121010, 7890242020]

約数ペア:

[(1, 7890242020), (2, 3945121010), (4, 1972560505), (5, 1578048404), (10, 789024202), (20, 394512101), (3251, 2427020), (6502, 1213510), (13004, 606755), (16255, 485404), (32510, 242702), (65020, 121351)]