639135364

素因数分解:

$2^2\times 7^1\times {\mathrm{821}}^1\times {\mathrm{27803}}^1$

素因数の和:28635

約数の個数: 24

約数和(自身を含む): 1279873728

約数和(自身を除く): 640738364

約数列:

[1, 2, 4, 7, 14, 28, 821, 1642, 3284, 5747, 11494, 22988, 27803, 55606, 111212, 194621, 389242, 778484, 22826263, 45652526, 91305052, 159783841, 319567682, 639135364]

約数ペア:

[(1, 639135364), (2, 319567682), (4, 159783841), (7, 91305052), (14, 45652526), (28, 22826263), (821, 778484), (1642, 389242), (3284, 194621), (5747, 111212), (11494, 55606), (22988, 27803)]