81306575

素因数分解:

$5^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{433}}^1$

素因数の和:516

約数の個数: 48

約数和(自身を含む): 122700480

約数和(自身を除く): 41393905

約数列:

[1, 5, 7, 25, 29, 35, 37, 145, 175, 185, 203, 259, 433, 725, 925, 1015, 1073, 1295, 2165, 3031, 5075, 5365, 6475, 7511, 10825, 12557, 15155, 16021, 26825, 37555, 62785, 75775, 80105, 87899, 112147, 187775, 313925, 400525, 439495, 464609, 560735, 2197475, 2323045, 2803675, 3252263, 11615225, 16261315, 81306575]

約数ペア:

[(1, 81306575), (5, 16261315), (7, 11615225), (25, 3252263), (29, 2803675), (35, 2323045), (37, 2197475), (145, 560735), (175, 464609), (185, 439495), (203, 400525), (259, 313925), (433, 187775), (725, 112147), (925, 87899), (1015, 80105), (1073, 75775), (1295, 62785), (2165, 37555), (3031, 26825), (5075, 16021), (5365, 15155), (6475, 12557), (7511, 10825)]