221805925

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{131}}^2$

素因数の和:330

約数の個数: 36

約数和(自身を含む): 308783808

約数和(自身を除く): 86977883

約数列:

[1, 5, 11, 25, 47, 55, 131, 235, 275, 517, 655, 1175, 1441, 2585, 3275, 6157, 7205, 12925, 17161, 30785, 36025, 67727, 85805, 153925, 188771, 338635, 429025, 806567, 943855, 1693175, 4032835, 4719275, 8872237, 20164175, 44361185, 221805925]

約数ペア:

[(1, 221805925), (5, 44361185), (11, 20164175), (25, 8872237), (47, 4719275), (55, 4032835), (131, 1693175), (235, 943855), (275, 806567), (517, 429025), (655, 338635), (1175, 188771), (1441, 153925), (2585, 85805), (3275, 67727), (6157, 36025), (7205, 30785), (12925, 17161)]