78580820

素因数分解:

$2^2\times 5^1\times {\mathrm{1471}}^1\times {\mathrm{2671}}^1$

素因数の和:4151

約数の個数: 24

約数和(自身を含む): 165193728

約数和(自身を除く): 86612908

約数列:

[1, 2, 4, 5, 10, 20, 1471, 2671, 2942, 5342, 5884, 7355, 10684, 13355, 14710, 26710, 29420, 53420, 3929041, 7858082, 15716164, 19645205, 39290410, 78580820]

約数ペア:

[(1, 78580820), (2, 39290410), (4, 19645205), (5, 15716164), (10, 7858082), (20, 3929041), (1471, 53420), (2671, 29420), (2942, 26710), (5342, 14710), (5884, 13355), (7355, 10684)]