20730760

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{11027}}^1$

素因数の和:11085

約数の個数: 32

約数和(自身を含む): 47640960

約数和(自身を除く): 26910200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 188, 235, 376, 470, 940, 1880, 11027, 22054, 44108, 55135, 88216, 110270, 220540, 441080, 518269, 1036538, 2073076, 2591345, 4146152, 5182690, 10365380, 20730760]

約数ペア:

[(1, 20730760), (2, 10365380), (4, 5182690), (5, 4146152), (8, 2591345), (10, 2073076), (20, 1036538), (40, 518269), (47, 441080), (94, 220540), (188, 110270), (235, 88216), (376, 55135), (470, 44108), (940, 22054), (1880, 11027)]