20837225

素因数分解:

$5^2\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{701}}^1$

素因数の和:781

約数の個数: 24

約数和(自身を含む): 27420120

約数和(自身を除く): 6582895

約数列:

[1, 5, 25, 29, 41, 145, 205, 701, 725, 1025, 1189, 3505, 5945, 17525, 20329, 28741, 29725, 101645, 143705, 508225, 718525, 833489, 4167445, 20837225]

約数ペア:

[(1, 20837225), (5, 4167445), (25, 833489), (29, 718525), (41, 508225), (145, 143705), (205, 101645), (701, 29725), (725, 28741), (1025, 20329), (1189, 17525), (3505, 5945)]