666425

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1$

素因数の和:113

約数の個数: 24

約数和(自身を含む): 922560

約数和(自身を除く): 256135

約数列:

[1, 5, 19, 23, 25, 61, 95, 115, 305, 437, 475, 575, 1159, 1403, 1525, 2185, 5795, 7015, 10925, 26657, 28975, 35075, 133285, 666425]

約数ペア:

[(1, 666425), (5, 133285), (19, 35075), (23, 28975), (25, 26657), (61, 10925), (95, 7015), (115, 5795), (305, 2185), (437, 1525), (475, 1403), (575, 1159)]