19672580

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{12451}}^1$

素因数の和:12539

約数の個数: 24

約数和(自身を含む): 41838720

約数和(自身を除く): 22166140

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 12451, 24902, 49804, 62255, 124510, 249020, 983629, 1967258, 3934516, 4918145, 9836290, 19672580]

約数ペア:

[(1, 19672580), (2, 9836290), (4, 4918145), (5, 3934516), (10, 1967258), (20, 983629), (79, 249020), (158, 124510), (316, 62255), (395, 49804), (790, 24902), (1580, 12451)]