208249975

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{263}}^1\times {\mathrm{1667}}^1$

素因数の和:1959

約数の個数: 24

約数和(自身を含む): 273018240

約数和(自身を除く): 64768265

約数列:

[1, 5, 19, 25, 95, 263, 475, 1315, 1667, 4997, 6575, 8335, 24985, 31673, 41675, 124925, 158365, 438421, 791825, 2192105, 8329999, 10960525, 41649995, 208249975]

約数ペア:

[(1, 208249975), (5, 41649995), (19, 10960525), (25, 8329999), (95, 2192105), (263, 791825), (475, 438421), (1315, 158365), (1667, 124925), (4997, 41675), (6575, 31673), (8335, 24985)]