201813520

素因数分解:

$2^4\times 5^1\times {\mathrm{2522669}}^1$

素因数の和:2522682

約数の個数: 20

約数和(自身を含む): 469216620

約数和(自身を除く): 267403100

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2522669, 5045338, 10090676, 12613345, 20181352, 25226690, 40362704, 50453380, 100906760, 201813520]

約数ペア:

[(1, 201813520), (2, 100906760), (4, 50453380), (5, 40362704), (8, 25226690), (10, 20181352), (16, 12613345), (20, 10090676), (40, 5045338), (80, 2522669)]