20212842680

素因数分解:

$2^3\times 5^1\times {\mathrm{505321067}}^1$

素因数の和:505321078

約数の個数: 16

約数和(自身を含む): 45478896120

約数和(自身を除く): 25266053440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 505321067, 1010642134, 2021284268, 2526605335, 4042568536, 5053210670, 10106421340, 20212842680]

約数ペア:

[(1, 20212842680), (2, 10106421340), (4, 5053210670), (5, 4042568536), (8, 2526605335), (10, 2021284268), (20, 1010642134), (40, 505321067)]