160202225

素因数分解:

$5^2\times {\mathrm{89}}^2\times {\mathrm{809}}^1$

素因数の和:997

約数の個数: 18

約数和(自身を含む): 201156210

約数和(自身を除く): 40953985

約数列:

[1, 5, 25, 89, 445, 809, 2225, 4045, 7921, 20225, 39605, 72001, 198025, 360005, 1800025, 6408089, 32040445, 160202225]

約数ペア:

[(1, 160202225), (5, 32040445), (25, 6408089), (89, 1800025), (445, 360005), (809, 198025), (2225, 72001), (4045, 39605), (7921, 20225)]