90569375

素因数分解:

$5^4\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{157}}^1$

素因数の和:261

約数の個数: 40

約数和(自身を含む): 124385184

約数和(自身を除く): 33815809

約数列:

[1, 5, 13, 25, 65, 71, 125, 157, 325, 355, 625, 785, 923, 1625, 1775, 2041, 3925, 4615, 8125, 8875, 10205, 11147, 19625, 23075, 44375, 51025, 55735, 98125, 115375, 144911, 255125, 278675, 576875, 724555, 1275625, 1393375, 3622775, 6966875, 18113875, 90569375]

約数ペア:

[(1, 90569375), (5, 18113875), (13, 6966875), (25, 3622775), (65, 1393375), (71, 1275625), (125, 724555), (157, 576875), (325, 278675), (355, 255125), (625, 144911), (785, 115375), (923, 98125), (1625, 55735), (1775, 51025), (2041, 44375), (3925, 23075), (4615, 19625), (8125, 11147), (8875, 10205)]