20576650

素因数分解:

$2^1\times 5^2\times {\mathrm{197}}^1\times {\mathrm{2089}}^1$

素因数の和:2298

約数の個数: 24

約数和(自身を含む): 38485260

約数和(自身を除く): 17908610

約数列:

[1, 2, 5, 10, 25, 50, 197, 394, 985, 1970, 2089, 4178, 4925, 9850, 10445, 20890, 52225, 104450, 411533, 823066, 2057665, 4115330, 10288325, 20576650]

約数ペア:

[(1, 20576650), (2, 10288325), (5, 4115330), (10, 2057665), (25, 823066), (50, 411533), (197, 104450), (394, 52225), (985, 20890), (1970, 10445), (2089, 9850), (4178, 4925)]