199800575

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^2\times {\mathrm{43}}^1$

素因数の和:141

約数の個数: 72

約数和(自身を含む): 299387088

約数和(自身を除く): 99586513

約数列:

[1, 5, 13, 17, 25, 29, 43, 65, 85, 145, 215, 221, 325, 377, 425, 493, 559, 725, 731, 841, 1075, 1105, 1247, 1885, 2465, 2795, 3655, 4205, 5525, 6235, 6409, 9425, 9503, 10933, 12325, 13975, 14297, 16211, 18275, 21025, 21199, 31175, 32045, 36163, 47515, 54665, 71485, 81055, 105995, 160225, 180815, 185861, 237575, 273325, 275587, 357425, 405275, 470119, 529975, 614771, 904075, 929305, 1377935, 2350595, 3073855, 4646525, 6889675, 7992023, 11752975, 15369275, 39960115, 199800575]

約数ペア:

[(1, 199800575), (5, 39960115), (13, 15369275), (17, 11752975), (25, 7992023), (29, 6889675), (43, 4646525), (65, 3073855), (85, 2350595), (145, 1377935), (215, 929305), (221, 904075), (325, 614771), (377, 529975), (425, 470119), (493, 405275), (559, 357425), (725, 275587), (731, 273325), (841, 237575), (1075, 185861), (1105, 180815), (1247, 160225), (1885, 105995), (2465, 81055), (2795, 71485), (3655, 54665), (4205, 47515), (5525, 36163), (6235, 32045), (6409, 31175), (9425, 21199), (9503, 21025), (10933, 18275), (12325, 16211), (13975, 14297)]