161025

素因数分解:

$3^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{113}}^1$

素因数の和:145

約数の個数: 24

約数和(自身を含む): 282720

約数和(自身を除く): 121695

約数列:

[1, 3, 5, 15, 19, 25, 57, 75, 95, 113, 285, 339, 475, 565, 1425, 1695, 2147, 2825, 6441, 8475, 10735, 32205, 53675, 161025]

約数ペア:

[(1, 161025), (3, 53675), (5, 32205), (15, 10735), (19, 8475), (25, 6441), (57, 2825), (75, 2147), (95, 1695), (113, 1425), (285, 565), (339, 475)]