20640802576

素因数分解:

$2^4\times {\mathrm{25951}}^1\times {\mathrm{49711}}^1$

素因数の和:75670

約数の個数: 20

約数和(自身を含む): 39993900544

約数和(自身を除く): 19353097968

約数列:

[1, 2, 4, 8, 16, 25951, 49711, 51902, 99422, 103804, 198844, 207608, 397688, 415216, 795376, 1290050161, 2580100322, 5160200644, 10320401288, 20640802576]

約数ペア:

[(1, 20640802576), (2, 10320401288), (4, 5160200644), (8, 2580100322), (16, 1290050161), (25951, 795376), (49711, 415216), (51902, 397688), (99422, 207608), (103804, 198844)]