64311325

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{433}}^1\times {\mathrm{457}}^1$

素因数の和:913

約数の個数: 24

約数和(自身を含む): 86267048

約数和(自身を除く): 21955723

約数列:

[1, 5, 13, 25, 65, 325, 433, 457, 2165, 2285, 5629, 5941, 10825, 11425, 28145, 29705, 140725, 148525, 197881, 989405, 2572453, 4947025, 12862265, 64311325]

約数ペア:

[(1, 64311325), (5, 12862265), (13, 4947025), (25, 2572453), (65, 989405), (325, 197881), (433, 148525), (457, 140725), (2165, 29705), (2285, 28145), (5629, 11425), (5941, 10825)]