64701325

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{199081}}^1$

素因数の和:199104

約数の個数: 12

約数和(自身を含む): 86401588

約数和(自身を除く): 21700263

約数列:

[1, 5, 13, 25, 65, 325, 199081, 995405, 2588053, 4977025, 12940265, 64701325]

約数ペア:

[(1, 64701325), (5, 12940265), (13, 4977025), (25, 2588053), (65, 995405), (325, 199081)]