204648100

素因数分解:

$2^2\times 5^2\times {\mathrm{421}}^1\times {\mathrm{4861}}^1$

素因数の和:5296

約数の個数: 36

約数和(自身を含む): 445232788

約数和(自身を除く): 240584688

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 421, 842, 1684, 2105, 4210, 4861, 8420, 9722, 10525, 19444, 21050, 24305, 42100, 48610, 97220, 121525, 243050, 486100, 2046481, 4092962, 8185924, 10232405, 20464810, 40929620, 51162025, 102324050, 204648100]

約数ペア:

[(1, 204648100), (2, 102324050), (4, 51162025), (5, 40929620), (10, 20464810), (20, 10232405), (25, 8185924), (50, 4092962), (100, 2046481), (421, 486100), (842, 243050), (1684, 121525), (2105, 97220), (4210, 48610), (4861, 42100), (8420, 24305), (9722, 21050), (10525, 19444)]