8638925

素因数分解:

$5^2\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{157}}^1$

素因数の和:269

約数の個数: 24

約数和(自身を含む): 11284992

約数和(自身を除く): 2646067

約数列:

[1, 5, 25, 31, 71, 155, 157, 355, 775, 785, 1775, 2201, 3925, 4867, 11005, 11147, 24335, 55025, 55735, 121675, 278675, 345557, 1727785, 8638925]

約数ペア:

[(1, 8638925), (5, 1727785), (25, 345557), (31, 278675), (71, 121675), (155, 55735), (157, 55025), (355, 24335), (775, 11147), (785, 11005), (1775, 4867), (2201, 3925)]