661005575

素因数分解:

$5^2\times {\mathrm{1301}}^1\times {\mathrm{20323}}^1$

素因数の和:21634

約数の個数: 12

約数和(自身を含む): 820317288

約数和(自身を除く): 159311713

約数列:

[1, 5, 25, 1301, 6505, 20323, 32525, 101615, 508075, 26440223, 132201115, 661005575]

約数ペア:

[(1, 661005575), (5, 132201115), (25, 26440223), (1301, 508075), (6505, 101615), (20323, 32525)]