20117875

素因数分解:

$5^3\times {\mathrm{227}}^1\times {\mathrm{709}}^1$

素因数の和:951

約数の個数: 16

約数和(自身を含む): 25253280

約数和(自身を除く): 5135405

約数列:

[1, 5, 25, 125, 227, 709, 1135, 3545, 5675, 17725, 28375, 88625, 160943, 804715, 4023575, 20117875]

約数ペア:

[(1, 20117875), (5, 4023575), (25, 804715), (125, 160943), (227, 88625), (709, 28375), (1135, 17725), (3545, 5675)]