20208880

素因数分解:

$2^4\times 5^1\times {\mathrm{252611}}^1$

素因数の和:252624

約数の個数: 20

約数和(自身を含む): 46985832

約数和(自身を除く): 26776952

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 252611, 505222, 1010444, 1263055, 2020888, 2526110, 4041776, 5052220, 10104440, 20208880]

約数ペア:

[(1, 20208880), (2, 10104440), (4, 5052220), (5, 4041776), (8, 2526110), (10, 2020888), (16, 1263055), (20, 1010444), (40, 505222), (80, 252611)]