205510940

素因数分解:

$2^2\times 5^1\times {\mathrm{1283}}^1\times {\mathrm{8009}}^1$

素因数の和:9301

約数の個数: 24

約数和(自身を含む): 431963280

約数和(自身を除く): 226452340

約数列:

[1, 2, 4, 5, 10, 20, 1283, 2566, 5132, 6415, 8009, 12830, 16018, 25660, 32036, 40045, 80090, 160180, 10275547, 20551094, 41102188, 51377735, 102755470, 205510940]

約数ペア:

[(1, 205510940), (2, 102755470), (4, 51377735), (5, 41102188), (10, 20551094), (20, 10275547), (1283, 160180), (2566, 80090), (5132, 40045), (6415, 32036), (8009, 25660), (12830, 16018)]