64660775

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{353}}^1\times {\mathrm{431}}^1$

素因数の和:811

約数の個数: 24

約数和(自身を含む): 85333824

約数和(自身を除く): 20673049

約数列:

[1, 5, 17, 25, 85, 353, 425, 431, 1765, 2155, 6001, 7327, 8825, 10775, 30005, 36635, 150025, 152143, 183175, 760715, 2586431, 3803575, 12932155, 64660775]

約数ペア:

[(1, 64660775), (5, 12932155), (17, 3803575), (25, 2586431), (85, 760715), (353, 183175), (425, 152143), (431, 150025), (1765, 36635), (2155, 30005), (6001, 10775), (7327, 8825)]