678993025

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{239}}^1\times {\mathrm{5981}}^1$

素因数の和:6249

約数の個数: 24

約数和(自身を含む): 890121600

約数和(自身を除く): 211128575

約数列:

[1, 5, 19, 25, 95, 239, 475, 1195, 4541, 5975, 5981, 22705, 29905, 113525, 113639, 149525, 568195, 1429459, 2840975, 7147295, 27159721, 35736475, 135798605, 678993025]

約数ペア:

[(1, 678993025), (5, 135798605), (19, 35736475), (25, 27159721), (95, 7147295), (239, 2840975), (475, 1429459), (1195, 568195), (4541, 149525), (5975, 113639), (5981, 113525), (22705, 29905)]