18809740

素因数分解:

$2^2\times 5^1\times {\mathrm{769}}^1\times {\mathrm{1223}}^1$

素因数の和:2001

約数の個数: 24

約数和(自身を含む): 39584160

約数和(自身を除く): 20774420

約数列:

[1, 2, 4, 5, 10, 20, 769, 1223, 1538, 2446, 3076, 3845, 4892, 6115, 7690, 12230, 15380, 24460, 940487, 1880974, 3761948, 4702435, 9404870, 18809740]

約数ペア:

[(1, 18809740), (2, 9404870), (4, 4702435), (5, 3761948), (10, 1880974), (20, 940487), (769, 24460), (1223, 15380), (1538, 12230), (2446, 7690), (3076, 6115), (3845, 4892)]