9901648775

素因数分解:

$5^2\times {\mathrm{31}}^1\times {\mathrm{12776321}}^1$

素因数の和:12776362

約数の個数: 12

約数和(自身を含む): 12674111424

約数和(自身を除く): 2772462649

約数列:

[1, 5, 25, 31, 155, 775, 12776321, 63881605, 319408025, 396065951, 1980329755, 9901648775]

約数ペア:

[(1, 9901648775), (5, 1980329755), (25, 396065951), (31, 319408025), (155, 63881605), (775, 12776321)]