210657640

素因数分解:

$2^3\times 5^1\times {\mathrm{5266441}}^1$

素因数の和:5266452

約数の個数: 16

約数和(自身を含む): 473979780

約数和(自身を除く): 263322140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 5266441, 10532882, 21065764, 26332205, 42131528, 52664410, 105328820, 210657640]

約数ペア:

[(1, 210657640), (2, 105328820), (4, 52664410), (5, 42131528), (8, 26332205), (10, 21065764), (20, 10532882), (40, 5266441)]