681086275

素因数分解:

$5^2\times {\mathrm{31}}^1\times {\mathrm{878821}}^1$

素因数の和:878862

約数の個数: 12

約数和(自身を含む): 871791424

約数和(自身を除く): 190705149

約数列:

[1, 5, 25, 31, 155, 775, 878821, 4394105, 21970525, 27243451, 136217255, 681086275]

約数ペア:

[(1, 681086275), (5, 136217255), (25, 27243451), (31, 21970525), (155, 4394105), (775, 878821)]