78132880

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{41}}^2\times {\mathrm{83}}^1$

素因数の和:185

約数の個数: 120

約数和(自身を含む): 215361216

約数和(自身を除く): 137228336

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 41, 56, 70, 80, 82, 83, 112, 140, 164, 166, 205, 280, 287, 328, 332, 410, 415, 560, 574, 581, 656, 664, 820, 830, 1148, 1162, 1328, 1435, 1640, 1660, 1681, 2296, 2324, 2870, 2905, 3280, 3320, 3362, 3403, 4592, 4648, 5740, 5810, 6640, 6724, 6806, 8405, 9296, 11480, 11620, 11767, 13448, 13612, 16810, 17015, 22960, 23240, 23534, 23821, 26896, 27224, 33620, 34030, 46480, 47068, 47642, 54448, 58835, 67240, 68060, 94136, 95284, 117670, 119105, 134480, 136120, 139523, 188272, 190568, 235340, 238210, 272240, 279046, 381136, 470680, 476420, 558092, 697615, 941360, 952840, 976661, 1116184, 1395230, 1905680, 1953322, 2232368, 2790460, 3906644, 4883305, 5580920, 7813288, 9766610, 11161840, 15626576, 19533220, 39066440, 78132880]

約数ペア:

[(1, 78132880), (2, 39066440), (4, 19533220), (5, 15626576), (7, 11161840), (8, 9766610), (10, 7813288), (14, 5580920), (16, 4883305), (20, 3906644), (28, 2790460), (35, 2232368), (40, 1953322), (41, 1905680), (56, 1395230), (70, 1116184), (80, 976661), (82, 952840), (83, 941360), (112, 697615), (140, 558092), (164, 476420), (166, 470680), (205, 381136), (280, 279046), (287, 272240), (328, 238210), (332, 235340), (410, 190568), (415, 188272), (560, 139523), (574, 136120), (581, 134480), (656, 119105), (664, 117670), (820, 95284), (830, 94136), (1148, 68060), (1162, 67240), (1328, 58835), (1435, 54448), (1640, 47642), (1660, 47068), (1681, 46480), (2296, 34030), (2324, 33620), (2870, 27224), (2905, 26896), (3280, 23821), (3320, 23534), (3362, 23240), (3403, 22960), (4592, 17015), (4648, 16810), (5740, 13612), (5810, 13448), (6640, 11767), (6724, 11620), (6806, 11480), (8405, 9296)]