18108775

素因数分解:

$5^2\times {\mathrm{53}}^1\times {\mathrm{79}}^1\times {\mathrm{173}}^1$

素因数の和:315

約数の個数: 24

約数和(自身を含む): 23302080

約数和(自身を除く): 5193305

約数列:

[1, 5, 25, 53, 79, 173, 265, 395, 865, 1325, 1975, 4187, 4325, 9169, 13667, 20935, 45845, 68335, 104675, 229225, 341675, 724351, 3621755, 18108775]

約数ペア:

[(1, 18108775), (5, 3621755), (25, 724351), (53, 341675), (79, 229225), (173, 104675), (265, 68335), (395, 45845), (865, 20935), (1325, 13667), (1975, 9169), (4187, 4325)]