20784414355

素因数分解:

$5^1\times {\mathrm{19}}^2\times {\mathrm{2801}}^1\times {\mathrm{4111}}^1$

素因数の和:6955

約数の個数: 24

約数和(自身を含む): 26338889664

約数和(自身を除く): 5554475309

約数列:

[1, 5, 19, 95, 361, 1805, 2801, 4111, 14005, 20555, 53219, 78109, 266095, 390545, 1011161, 1484071, 5055805, 7420355, 11514911, 57574555, 218783309, 1093916545, 4156882871, 20784414355]

約数ペア:

[(1, 20784414355), (5, 4156882871), (19, 1093916545), (95, 218783309), (361, 57574555), (1805, 11514911), (2801, 7420355), (4111, 5055805), (14005, 1484071), (20555, 1011161), (53219, 390545), (78109, 266095)]