1820720

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{2069}}^1$

素因数の和:2093

約数の個数: 40

約数和(自身を含む): 4620240

約数和(自身を除く): 2799520

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 2069, 4138, 8276, 10345, 16552, 20690, 22759, 33104, 41380, 45518, 82760, 91036, 113795, 165520, 182072, 227590, 364144, 455180, 910360, 1820720]

約数ペア:

[(1, 1820720), (2, 910360), (4, 455180), (5, 364144), (8, 227590), (10, 182072), (11, 165520), (16, 113795), (20, 91036), (22, 82760), (40, 45518), (44, 41380), (55, 33104), (80, 22759), (88, 20690), (110, 16552), (176, 10345), (220, 8276), (440, 4138), (880, 2069)]