20539850

素因数分解:

$2^1\times 5^2\times {\mathrm{547}}^1\times {\mathrm{751}}^1$

素因数の和:1310

約数の個数: 24

約数和(自身を含む): 38324928

約数和(自身を除く): 17785078

約数列:

[1, 2, 5, 10, 25, 50, 547, 751, 1094, 1502, 2735, 3755, 5470, 7510, 13675, 18775, 27350, 37550, 410797, 821594, 2053985, 4107970, 10269925, 20539850]

約数ペア:

[(1, 20539850), (2, 10269925), (5, 4107970), (10, 2053985), (25, 821594), (50, 410797), (547, 37550), (751, 27350), (1094, 18775), (1502, 13675), (2735, 7510), (3755, 5470)]