218025475

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{521}}^1\times {\mathrm{881}}^1$

素因数の和:1431

約数の個数: 24

約数和(自身を含む): 285450480

約数和(自身を除く): 67425005

約数列:

[1, 5, 19, 25, 95, 475, 521, 881, 2605, 4405, 9899, 13025, 16739, 22025, 49495, 83695, 247475, 418475, 459001, 2295005, 8721019, 11475025, 43605095, 218025475]

約数ペア:

[(1, 218025475), (5, 43605095), (19, 11475025), (25, 8721019), (95, 2295005), (475, 459001), (521, 418475), (881, 247475), (2605, 83695), (4405, 49495), (9899, 22025), (13025, 16739)]