28390505

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{673}}^1$

素因数の和:761

約数の個数: 32

約数和(自身を含む): 40763520

約数和(自身を除く): 12373015

約数列:

[1, 5, 11, 13, 55, 59, 65, 143, 295, 649, 673, 715, 767, 3245, 3365, 3835, 7403, 8437, 8749, 37015, 39707, 42185, 43745, 96239, 198535, 436777, 481195, 516191, 2183885, 2580955, 5678101, 28390505]

約数ペア:

[(1, 28390505), (5, 5678101), (11, 2580955), (13, 2183885), (55, 516191), (59, 481195), (65, 436777), (143, 198535), (295, 96239), (649, 43745), (673, 42185), (715, 39707), (767, 37015), (3245, 8749), (3365, 8437), (3835, 7403)]