20631245

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{2749}}^1$

素因数の和:2852

約数の個数: 16

約数和(自身を含む): 26400000

約数和(自身を除く): 5768755

約数列:

[1, 5, 19, 79, 95, 395, 1501, 2749, 7505, 13745, 52231, 217171, 261155, 1085855, 4126249, 20631245]

約数ペア:

[(1, 20631245), (5, 4126249), (19, 1085855), (79, 261155), (95, 217171), (395, 52231), (1501, 13745), (2749, 7505)]