20746760

素因数分解:

$2^3\times 5^1\times {\mathrm{59}}^2\times {\mathrm{149}}^1$

素因数の和:278

約数の個数: 48

約数和(自身を含む): 47803500

約数和(自身を除く): 27056740

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 59, 118, 149, 236, 295, 298, 472, 590, 596, 745, 1180, 1192, 1490, 2360, 2980, 3481, 5960, 6962, 8791, 13924, 17405, 17582, 27848, 34810, 35164, 43955, 69620, 70328, 87910, 139240, 175820, 351640, 518669, 1037338, 2074676, 2593345, 4149352, 5186690, 10373380, 20746760]

約数ペア:

[(1, 20746760), (2, 10373380), (4, 5186690), (5, 4149352), (8, 2593345), (10, 2074676), (20, 1037338), (40, 518669), (59, 351640), (118, 175820), (149, 139240), (236, 87910), (295, 70328), (298, 69620), (472, 43955), (590, 35164), (596, 34810), (745, 27848), (1180, 17582), (1192, 17405), (1490, 13924), (2360, 8791), (2980, 6962), (3481, 5960)]