320538320

素因数分解:

$2^4\times 5^1\times {\mathrm{4006729}}^1$

素因数の和:4006742

約数の個数: 20

約数和(自身を含む): 745251780

約数和(自身を除く): 424713460

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 4006729, 8013458, 16026916, 20033645, 32053832, 40067290, 64107664, 80134580, 160269160, 320538320]

約数ペア:

[(1, 320538320), (2, 160269160), (4, 80134580), (5, 64107664), (8, 40067290), (10, 32053832), (16, 20033645), (20, 16026916), (40, 8013458), (80, 4006729)]