28155940

素因数分解:

$2^2\times 5^1\times {\mathrm{317}}^1\times {\mathrm{4441}}^1$

素因数の和:4767

約数の個数: 24

約数和(自身を含む): 59327352

約数和(自身を除く): 31171412

約数列:

[1, 2, 4, 5, 10, 20, 317, 634, 1268, 1585, 3170, 4441, 6340, 8882, 17764, 22205, 44410, 88820, 1407797, 2815594, 5631188, 7038985, 14077970, 28155940]

約数ペア:

[(1, 28155940), (2, 14077970), (4, 7038985), (5, 5631188), (10, 2815594), (20, 1407797), (317, 88820), (634, 44410), (1268, 22205), (1585, 17764), (3170, 8882), (4441, 6340)]