20007580

素因数分解:

$2^2\times 5^1\times {\mathrm{127}}^1\times {\mathrm{7877}}^1$

素因数の和:8013

約数の個数: 24

約数和(自身を含む): 42352128

約数和(自身を除く): 22344548

約数列:

[1, 2, 4, 5, 10, 20, 127, 254, 508, 635, 1270, 2540, 7877, 15754, 31508, 39385, 78770, 157540, 1000379, 2000758, 4001516, 5001895, 10003790, 20007580]

約数ペア:

[(1, 20007580), (2, 10003790), (4, 5001895), (5, 4001516), (10, 2000758), (20, 1000379), (127, 157540), (254, 78770), (508, 39385), (635, 31508), (1270, 15754), (2540, 7877)]