20615288

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{5227}}^1$

素因数の和:5279

約数の個数: 32

約数和(自身を含む): 42346800

約数和(自身を除く): 21731512

約数列:

[1, 2, 4, 8, 17, 29, 34, 58, 68, 116, 136, 232, 493, 986, 1972, 3944, 5227, 10454, 20908, 41816, 88859, 151583, 177718, 303166, 355436, 606332, 710872, 1212664, 2576911, 5153822, 10307644, 20615288]

約数ペア:

[(1, 20615288), (2, 10307644), (4, 5153822), (8, 2576911), (17, 1212664), (29, 710872), (34, 606332), (58, 355436), (68, 303166), (116, 177718), (136, 151583), (232, 88859), (493, 41816), (986, 20908), (1972, 10454), (3944, 5227)]