8940620

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{251}}^1$

素因数の和:410

約数の個数: 48

約数和(自身を含む): 20448288

約数和(自身を除く): 11507668

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 137, 251, 260, 274, 502, 548, 685, 1004, 1255, 1370, 1781, 2510, 2740, 3263, 3562, 5020, 6526, 7124, 8905, 13052, 16315, 17810, 32630, 34387, 35620, 65260, 68774, 137548, 171935, 343870, 447031, 687740, 894062, 1788124, 2235155, 4470310, 8940620]

約数ペア:

[(1, 8940620), (2, 4470310), (4, 2235155), (5, 1788124), (10, 894062), (13, 687740), (20, 447031), (26, 343870), (52, 171935), (65, 137548), (130, 68774), (137, 65260), (251, 35620), (260, 34387), (274, 32630), (502, 17810), (548, 16315), (685, 13052), (1004, 8905), (1255, 7124), (1370, 6526), (1781, 5020), (2510, 3562), (2740, 3263)]