19408100

素因数分解:

$2^2\times 5^2\times {\mathrm{421}}^1\times {\mathrm{461}}^1$

素因数の和:896

約数の個数: 36

約数和(自身を含む): 42307188

約数和(自身を除く): 22899088

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 421, 461, 842, 922, 1684, 1844, 2105, 2305, 4210, 4610, 8420, 9220, 10525, 11525, 21050, 23050, 42100, 46100, 194081, 388162, 776324, 970405, 1940810, 3881620, 4852025, 9704050, 19408100]

約数ペア:

[(1, 19408100), (2, 9704050), (4, 4852025), (5, 3881620), (10, 1940810), (20, 970405), (25, 776324), (50, 388162), (100, 194081), (421, 46100), (461, 42100), (842, 23050), (922, 21050), (1684, 11525), (1844, 10525), (2105, 9220), (2305, 8420), (4210, 4610)]