203945275

素因数分解:

$5^2\times {\mathrm{41}}^1\times {\mathrm{198971}}^1$

素因数の和:199022

約数の個数: 12

約数和(自身を含む): 259061544

約数和(自身を除く): 55116269

約数列:

[1, 5, 25, 41, 205, 1025, 198971, 994855, 4974275, 8157811, 40789055, 203945275]

約数ペア:

[(1, 203945275), (5, 40789055), (25, 8157811), (41, 4974275), (205, 994855), (1025, 198971)]