20642635

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{233}}^1$

素因数の和:327

約数の個数: 32

約数和(自身を含む): 28304640

約数和(自身を除く): 7662005

約数列:

[1, 5, 13, 29, 47, 65, 145, 233, 235, 377, 611, 1165, 1363, 1885, 3029, 3055, 6757, 6815, 10951, 15145, 17719, 33785, 54755, 87841, 88595, 142363, 317579, 439205, 711815, 1587895, 4128527, 20642635]

約数ペア:

[(1, 20642635), (5, 4128527), (13, 1587895), (29, 711815), (47, 439205), (65, 317579), (145, 142363), (233, 88595), (235, 87841), (377, 54755), (611, 33785), (1165, 17719), (1363, 15145), (1885, 10951), (3029, 6815), (3055, 6757)]