18389740

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{24851}}^1$

素因数の和:24897

約数の個数: 24

約数和(自身を含む): 39663792

約数和(自身を除く): 21274052

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 148, 185, 370, 740, 24851, 49702, 99404, 124255, 248510, 497020, 919487, 1838974, 3677948, 4597435, 9194870, 18389740]

約数ペア:

[(1, 18389740), (2, 9194870), (4, 4597435), (5, 3677948), (10, 1838974), (20, 919487), (37, 497020), (74, 248510), (148, 124255), (185, 99404), (370, 49702), (740, 24851)]