16818320

素因数分解:

$2^4\times 5^1\times {\mathrm{210229}}^1$

素因数の和:210242

約数の個数: 20

約数和(自身を含む): 39102780

約数和(自身を除く): 22284460

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 210229, 420458, 840916, 1051145, 1681832, 2102290, 3363664, 4204580, 8409160, 16818320]

約数ペア:

[(1, 16818320), (2, 8409160), (4, 4204580), (5, 3363664), (8, 2102290), (10, 1681832), (16, 1051145), (20, 840916), (40, 420458), (80, 210229)]