20698100

素因数分解:

$2^2\times 5^2\times {\mathrm{263}}^1\times {\mathrm{787}}^1$

素因数の和:1064

約数の個数: 36

約数和(自身を含む): 45142944

約数和(自身を除く): 24444844

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 263, 526, 787, 1052, 1315, 1574, 2630, 3148, 3935, 5260, 6575, 7870, 13150, 15740, 19675, 26300, 39350, 78700, 206981, 413962, 827924, 1034905, 2069810, 4139620, 5174525, 10349050, 20698100]

約数ペア:

[(1, 20698100), (2, 10349050), (4, 5174525), (5, 4139620), (10, 2069810), (20, 1034905), (25, 827924), (50, 413962), (100, 206981), (263, 78700), (526, 39350), (787, 26300), (1052, 19675), (1315, 15740), (1574, 13150), (2630, 7870), (3148, 6575), (3935, 5260)]