51255715

素因数分解:

$5^1\times 7^2\times {\mathrm{131}}^1\times {\mathrm{1597}}^1$

素因数の和:1747

約数の個数: 24

約数和(自身を含む): 72140112

約数和(自身を除く): 20884397

約数列:

[1, 5, 7, 35, 49, 131, 245, 655, 917, 1597, 4585, 6419, 7985, 11179, 32095, 55895, 78253, 209207, 391265, 1046035, 1464449, 7322245, 10251143, 51255715]

約数ペア:

[(1, 51255715), (5, 10251143), (7, 7322245), (35, 1464449), (49, 1046035), (131, 391265), (245, 209207), (655, 78253), (917, 55895), (1597, 32095), (4585, 11179), (6419, 7985)]