20457925

素因数分解:

$5^2\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{757}}^1$

素因数の和:837

約数の個数: 24

約数和(自身を含む): 27069696

約数和(自身を除く): 6611771

約数列:

[1, 5, 23, 25, 47, 115, 235, 575, 757, 1081, 1175, 3785, 5405, 17411, 18925, 27025, 35579, 87055, 177895, 435275, 818317, 889475, 4091585, 20457925]

約数ペア:

[(1, 20457925), (5, 4091585), (23, 889475), (25, 818317), (47, 435275), (115, 177895), (235, 87055), (575, 35579), (757, 27025), (1081, 18925), (1175, 17411), (3785, 5405)]