28200655

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{42407}}^1$

素因数の和:42438

約数の個数: 16

約数和(自身を含む): 40711680

約数和(自身を除く): 12511025

約数列:

[1, 5, 7, 19, 35, 95, 133, 665, 42407, 212035, 296849, 805733, 1484245, 4028665, 5640131, 28200655]

約数ペア:

[(1, 28200655), (5, 5640131), (7, 4028665), (19, 1484245), (35, 805733), (95, 296849), (133, 212035), (665, 42407)]