40591025

素因数分解:

$5^2\times {\mathrm{41}}^1\times {\mathrm{199}}^2$

素因数の和:449

約数の個数: 18

約数和(自身を含む): 51820902

約数和(自身を除く): 11229877

約数列:

[1, 5, 25, 41, 199, 205, 995, 1025, 4975, 8159, 39601, 40795, 198005, 203975, 990025, 1623641, 8118205, 40591025]

約数ペア:

[(1, 40591025), (5, 8118205), (25, 1623641), (41, 990025), (199, 203975), (205, 198005), (995, 40795), (1025, 39601), (4975, 8159)]