3121625

素因数分解:

$5^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{113}}^1$

素因数の和:158

約数の個数: 32

約数和(自身を含む): 4481568

約数和(自身を除く): 1359943

約数列:

[1, 5, 13, 17, 25, 65, 85, 113, 125, 221, 325, 425, 565, 1105, 1469, 1625, 1921, 2125, 2825, 5525, 7345, 9605, 14125, 24973, 27625, 36725, 48025, 124865, 183625, 240125, 624325, 3121625]

約数ペア:

[(1, 3121625), (5, 624325), (13, 240125), (17, 183625), (25, 124865), (65, 48025), (85, 36725), (113, 27625), (125, 24973), (221, 14125), (325, 9605), (425, 7345), (565, 5525), (1105, 2825), (1469, 2125), (1625, 1921)]