16218320

素因数分解:

$2^4\times 5^1\times {\mathrm{202729}}^1$

素因数の和:202742

約数の個数: 20

約数和(自身を含む): 37707780

約数和(自身を除く): 21489460

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 202729, 405458, 810916, 1013645, 1621832, 2027290, 3243664, 4054580, 8109160, 16218320]

約数ペア:

[(1, 16218320), (2, 8109160), (4, 4054580), (5, 3243664), (8, 2027290), (10, 1621832), (16, 1013645), (20, 810916), (40, 405458), (80, 202729)]