20256205

素因数分解:

$5^1\times {\mathrm{37}}^1\times {\mathrm{223}}^1\times {\mathrm{491}}^1$

素因数の和:756

約数の個数: 16

約数和(自身を含む): 25127424

約数和(自身を除く): 4871219

約数列:

[1, 5, 37, 185, 223, 491, 1115, 2455, 8251, 18167, 41255, 90835, 109493, 547465, 4051241, 20256205]

約数ペア:

[(1, 20256205), (5, 4051241), (37, 547465), (185, 109493), (223, 90835), (491, 41255), (1115, 18167), (2455, 8251)]