161901125

素因数分解:

$5^3\times {\mathrm{809}}^1\times {\mathrm{1601}}^1$

素因数の和:2425

約数の個数: 16

約数和(自身を含む): 202428720

約数和(自身を除く): 40527595

約数列:

[1, 5, 25, 125, 809, 1601, 4045, 8005, 20225, 40025, 101125, 200125, 1295209, 6476045, 32380225, 161901125]

約数ペア:

[(1, 161901125), (5, 32380225), (25, 6476045), (125, 1295209), (809, 200125), (1601, 101125), (4045, 40025), (8005, 20225)]