72454100

素因数分解:

$2^2\times 5^2\times {\mathrm{421}}^1\times {\mathrm{1721}}^1$

素因数の和:2156

約数の個数: 36

約数和(自身を含む): 157690428

約数和(自身を除く): 85236328

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 421, 842, 1684, 1721, 2105, 3442, 4210, 6884, 8420, 8605, 10525, 17210, 21050, 34420, 42100, 43025, 86050, 172100, 724541, 1449082, 2898164, 3622705, 7245410, 14490820, 18113525, 36227050, 72454100]

約数ペア:

[(1, 72454100), (2, 36227050), (4, 18113525), (5, 14490820), (10, 7245410), (20, 3622705), (25, 2898164), (50, 1449082), (100, 724541), (421, 172100), (842, 86050), (1684, 43025), (1721, 42100), (2105, 34420), (3442, 21050), (4210, 17210), (6884, 10525), (8420, 8605)]