2012553220

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{709}}^1\times {\mathrm{1999}}^1$

素因数の和:2788

約数の個数: 48

約数和(自身を含む): 4294080000

約数和(自身を除く): 2281526780

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 709, 710, 1418, 1420, 1999, 2836, 3545, 3998, 7090, 7996, 9995, 14180, 19990, 39980, 50339, 100678, 141929, 201356, 251695, 283858, 503390, 567716, 709645, 1006780, 1417291, 1419290, 2834582, 2838580, 5669164, 7086455, 14172910, 28345820, 100627661, 201255322, 402510644, 503138305, 1006276610, 2012553220]

約数ペア:

[(1, 2012553220), (2, 1006276610), (4, 503138305), (5, 402510644), (10, 201255322), (20, 100627661), (71, 28345820), (142, 14172910), (284, 7086455), (355, 5669164), (709, 2838580), (710, 2834582), (1418, 1419290), (1420, 1417291), (1999, 1006780), (2836, 709645), (3545, 567716), (3998, 503390), (7090, 283858), (7996, 251695), (9995, 201356), (14180, 141929), (19990, 100678), (39980, 50339)]