20924080

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^2\times {\mathrm{311}}^1$

素因数の和:382

約数の個数: 60

約数和(自身を含む): 50545872

約数和(自身を除く): 29621792

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 40, 58, 80, 116, 145, 232, 290, 311, 464, 580, 622, 841, 1160, 1244, 1555, 1682, 2320, 2488, 3110, 3364, 4205, 4976, 6220, 6728, 8410, 9019, 12440, 13456, 16820, 18038, 24880, 33640, 36076, 45095, 67280, 72152, 90190, 144304, 180380, 261551, 360760, 523102, 721520, 1046204, 1307755, 2092408, 2615510, 4184816, 5231020, 10462040, 20924080]

約数ペア:

[(1, 20924080), (2, 10462040), (4, 5231020), (5, 4184816), (8, 2615510), (10, 2092408), (16, 1307755), (20, 1046204), (29, 721520), (40, 523102), (58, 360760), (80, 261551), (116, 180380), (145, 144304), (232, 90190), (290, 72152), (311, 67280), (464, 45095), (580, 36076), (622, 33640), (841, 24880), (1160, 18038), (1244, 16820), (1555, 13456), (1682, 12440), (2320, 9019), (2488, 8410), (3110, 6728), (3364, 6220), (4205, 4976)]