990160

素因数分解:

$2^4\times 5^1\times {\mathrm{12377}}^1$

素因数の和:12390

約数の個数: 20

約数和(自身を含む): 2302308

約数和(自身を除く): 1312148

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 12377, 24754, 49508, 61885, 99016, 123770, 198032, 247540, 495080, 990160]

約数ペア:

[(1, 990160), (2, 495080), (4, 247540), (5, 198032), (8, 123770), (10, 99016), (16, 61885), (20, 49508), (40, 24754), (80, 12377)]