20210938640

素因数分解:

$2^4\times 5^1\times {\mathrm{252636733}}^1$

素因数の和:252636746

約数の個数: 20

約数和(自身を含む): 46990432524

約数和(自身を除く): 26779493884

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 252636733, 505273466, 1010546932, 1263183665, 2021093864, 2526367330, 4042187728, 5052734660, 10105469320, 20210938640]

約数ペア:

[(1, 20210938640), (2, 10105469320), (4, 5052734660), (5, 4042187728), (8, 2526367330), (10, 2021093864), (16, 1263183665), (20, 1010546932), (40, 505273466), (80, 252636733)]