201665205

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{71}}^2\times {\mathrm{127}}^1$

素因数の和:287

約数の個数: 72

約数和(自身を含む): 408385536

約数和(自身を除く): 206720331

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 71, 105, 127, 213, 315, 355, 381, 497, 635, 639, 889, 1065, 1143, 1491, 1905, 2485, 2667, 3195, 4445, 4473, 5041, 5715, 7455, 8001, 9017, 13335, 15123, 22365, 25205, 27051, 35287, 40005, 45085, 45369, 63119, 75615, 81153, 105861, 135255, 176435, 189357, 226845, 315595, 317583, 405765, 529305, 568071, 640207, 946785, 1587915, 1920621, 2840355, 3201035, 4481449, 5761863, 9603105, 13444347, 22407245, 28809315, 40333041, 67221735, 201665205]

約数ペア:

[(1, 201665205), (3, 67221735), (5, 40333041), (7, 28809315), (9, 22407245), (15, 13444347), (21, 9603105), (35, 5761863), (45, 4481449), (63, 3201035), (71, 2840355), (105, 1920621), (127, 1587915), (213, 946785), (315, 640207), (355, 568071), (381, 529305), (497, 405765), (635, 317583), (639, 315595), (889, 226845), (1065, 189357), (1143, 176435), (1491, 135255), (1905, 105861), (2485, 81153), (2667, 75615), (3195, 63119), (4445, 45369), (4473, 45085), (5041, 40005), (5715, 35287), (7455, 27051), (8001, 25205), (9017, 22365), (13335, 15123)]