2912985520

素因数分解:

$2^4\times 5^1\times {\mathrm{251}}^1\times {\mathrm{145069}}^1$

素因数の和:145333

約数の個数: 40

約数和(自身を含む): 6799721040

約数和(自身を除く): 3886735520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 251, 502, 1004, 1255, 2008, 2510, 4016, 5020, 10040, 20080, 145069, 290138, 580276, 725345, 1160552, 1450690, 2321104, 2901380, 5802760, 11605520, 36412319, 72824638, 145649276, 182061595, 291298552, 364123190, 582597104, 728246380, 1456492760, 2912985520]

約数ペア:

[(1, 2912985520), (2, 1456492760), (4, 728246380), (5, 582597104), (8, 364123190), (10, 291298552), (16, 182061595), (20, 145649276), (40, 72824638), (80, 36412319), (251, 11605520), (502, 5802760), (1004, 2901380), (1255, 2321104), (2008, 1450690), (2510, 1160552), (4016, 725345), (5020, 580276), (10040, 290138), (20080, 145069)]