2840355

素因数分解:

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

素因数の和:216

約数の個数: 48

約数和(自身を含む): 5750784

約数和(自身を除く): 2910429

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, 5715, 7455, 8001, 9017, 13335, 22365, 27051, 40005, 45085, 63119, 81153, 135255, 189357, 315595, 405765, 568071, 946785, 2840355]

約数ペア:

[(1, 2840355), (3, 946785), (5, 568071), (7, 405765), (9, 315595), (15, 189357), (21, 135255), (35, 81153), (45, 63119), (63, 45085), (71, 40005), (105, 27051), (127, 22365), (213, 13335), (315, 9017), (355, 8001), (381, 7455), (497, 5715), (635, 4473), (639, 4445), (889, 3195), (1065, 2667), (1143, 2485), (1491, 1905)]