163471025

素因数分解:

$5^2\times {\mathrm{101}}^2\times {\mathrm{641}}^1$

素因数の和:853

約数の個数: 18

約数和(自身を含む): 205050306

約数和(自身を除く): 41579281

約数列:

[1, 5, 25, 101, 505, 641, 2525, 3205, 10201, 16025, 51005, 64741, 255025, 323705, 1618525, 6538841, 32694205, 163471025]

約数ペア:

[(1, 163471025), (5, 32694205), (25, 6538841), (101, 1618525), (505, 323705), (641, 255025), (2525, 64741), (3205, 51005), (10201, 16025)]