78744620

素因数分解:

$2^2\times 5^1\times {\mathrm{1381}}^1\times {\mathrm{2851}}^1$

素因数の和:4241

約数の個数: 24

約数和(自身を含む): 165541488

約数和(自身を除く): 86796868

約数列:

[1, 2, 4, 5, 10, 20, 1381, 2762, 2851, 5524, 5702, 6905, 11404, 13810, 14255, 27620, 28510, 57020, 3937231, 7874462, 15748924, 19686155, 39372310, 78744620]

約数ペア:

[(1, 78744620), (2, 39372310), (4, 19686155), (5, 15748924), (10, 7874462), (20, 3937231), (1381, 57020), (2762, 28510), (2851, 27620), (5524, 14255), (5702, 13810), (6905, 11404)]