20594728

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{499}}^1$

素因数の和:590

約数の個数: 64

約数和(自身を含む): 48960000

約数和(自身を除く): 28365272

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 44, 56, 67, 77, 88, 134, 154, 268, 308, 469, 499, 536, 616, 737, 938, 998, 1474, 1876, 1996, 2948, 3493, 3752, 3992, 5159, 5489, 5896, 6986, 10318, 10978, 13972, 20636, 21956, 27944, 33433, 38423, 41272, 43912, 66866, 76846, 133732, 153692, 234031, 267464, 307384, 367763, 468062, 735526, 936124, 1471052, 1872248, 2574341, 2942104, 5148682, 10297364, 20594728]

約数ペア:

[(1, 20594728), (2, 10297364), (4, 5148682), (7, 2942104), (8, 2574341), (11, 1872248), (14, 1471052), (22, 936124), (28, 735526), (44, 468062), (56, 367763), (67, 307384), (77, 267464), (88, 234031), (134, 153692), (154, 133732), (268, 76846), (308, 66866), (469, 43912), (499, 41272), (536, 38423), (616, 33433), (737, 27944), (938, 21956), (998, 20636), (1474, 13972), (1876, 10978), (1996, 10318), (2948, 6986), (3493, 5896), (3752, 5489), (3992, 5159)]