20687324

素因数分解:

$2^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{349}}^1$

素因数の和:462

約数の個数: 48

約数和(自身を含む): 43512000

約数和(自身を除く): 22824676

約数列:

[1, 2, 4, 7, 14, 28, 29, 58, 73, 116, 146, 203, 292, 349, 406, 511, 698, 812, 1022, 1396, 2044, 2117, 2443, 4234, 4886, 8468, 9772, 10121, 14819, 20242, 25477, 29638, 40484, 50954, 59276, 70847, 101908, 141694, 178339, 283388, 356678, 713356, 738833, 1477666, 2955332, 5171831, 10343662, 20687324]

約数ペア:

[(1, 20687324), (2, 10343662), (4, 5171831), (7, 2955332), (14, 1477666), (28, 738833), (29, 713356), (58, 356678), (73, 283388), (116, 178339), (146, 141694), (203, 101908), (292, 70847), (349, 59276), (406, 50954), (511, 40484), (698, 29638), (812, 25477), (1022, 20242), (1396, 14819), (2044, 10121), (2117, 9772), (2443, 8468), (4234, 4886)]