18113875

素因数分解:

$5^3\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{157}}^1$

素因数の和:256

約数の個数: 32

約数和(自身を含む): 24845184

約数和(自身を除く): 6731309

約数列:

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

約数ペア:

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