200909225

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{103}}^1\times {\mathrm{173}}^1$

素因数の和:338

約数の個数: 48

約数和(自身を含む): 282731904

約数和(自身を除く): 81822679

約数列:

[1, 5, 11, 25, 41, 55, 103, 173, 205, 275, 451, 515, 865, 1025, 1133, 1903, 2255, 2575, 4223, 4325, 5665, 7093, 9515, 11275, 17819, 21115, 28325, 35465, 46453, 47575, 78023, 89095, 105575, 177325, 196009, 232265, 390115, 445475, 730579, 980045, 1161325, 1950575, 3652895, 4900225, 8036369, 18264475, 40181845, 200909225]

約数ペア:

[(1, 200909225), (5, 40181845), (11, 18264475), (25, 8036369), (41, 4900225), (55, 3652895), (103, 1950575), (173, 1161325), (205, 980045), (275, 730579), (451, 445475), (515, 390115), (865, 232265), (1025, 196009), (1133, 177325), (1903, 105575), (2255, 89095), (2575, 78023), (4223, 47575), (4325, 46453), (5665, 35465), (7093, 28325), (9515, 21115), (11275, 17819)]