18885740

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{11953}}^1$

素因数の和:12041

約数の個数: 24

約数和(自身を含む): 40165440

約数和(自身を除く): 21279700

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 11953, 23906, 47812, 59765, 119530, 239060, 944287, 1888574, 3777148, 4721435, 9442870, 18885740]

約数ペア:

[(1, 18885740), (2, 9442870), (4, 4721435), (5, 3777148), (10, 1888574), (20, 944287), (79, 239060), (158, 119530), (316, 59765), (395, 47812), (790, 23906), (1580, 11953)]