664653025

素因数分解:

$5^2\times {\mathrm{173}}^1\times {\mathrm{239}}^1\times {\mathrm{643}}^1$

素因数の和:1065

約数の個数: 24

約数和(自身を含む): 833696640

約数和(自身を除く): 169043615

約数列:

[1, 5, 25, 173, 239, 643, 865, 1195, 3215, 4325, 5975, 16075, 41347, 111239, 153677, 206735, 556195, 768385, 1033675, 2780975, 3841925, 26586121, 132930605, 664653025]

約数ペア:

[(1, 664653025), (5, 132930605), (25, 26586121), (173, 3841925), (239, 2780975), (643, 1033675), (865, 768385), (1195, 556195), (3215, 206735), (4325, 153677), (5975, 111239), (16075, 41347)]