20868620

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{10331}}^1$

素因数の和:10441

約数の個数: 24

約数和(自身を含む): 44262288

約数和(自身を除く): 23393668

約数列:

[1, 2, 4, 5, 10, 20, 101, 202, 404, 505, 1010, 2020, 10331, 20662, 41324, 51655, 103310, 206620, 1043431, 2086862, 4173724, 5217155, 10434310, 20868620]

約数ペア:

[(1, 20868620), (2, 10434310), (4, 5217155), (5, 4173724), (10, 2086862), (20, 1043431), (101, 206620), (202, 103310), (404, 51655), (505, 41324), (1010, 20662), (2020, 10331)]