209997175

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{10513}}^1$

素因数の和:10587

約数の個数: 24

約数和(自身を含む): 281606976

約数和(自身を除く): 71609801

約数列:

[1, 5, 17, 25, 47, 85, 235, 425, 799, 1175, 3995, 10513, 19975, 52565, 178721, 262825, 494111, 893605, 2470555, 4468025, 8399887, 12352775, 41999435, 209997175]

約数ペア:

[(1, 209997175), (5, 41999435), (17, 12352775), (25, 8399887), (47, 4468025), (85, 2470555), (235, 893605), (425, 494111), (799, 262825), (1175, 178721), (3995, 52565), (10513, 19975)]