64289920

素因数分解:

$2^7\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{311}}^1$

素因数の和:366

約数の個数: 128

約数和(自身を含む): 171849600

約数和(自身を除く): 107559680

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 19, 20, 32, 34, 38, 40, 64, 68, 76, 80, 85, 95, 128, 136, 152, 160, 170, 190, 272, 304, 311, 320, 323, 340, 380, 544, 608, 622, 640, 646, 680, 760, 1088, 1216, 1244, 1292, 1360, 1520, 1555, 1615, 2176, 2432, 2488, 2584, 2720, 3040, 3110, 3230, 4976, 5168, 5287, 5440, 5909, 6080, 6220, 6460, 9952, 10336, 10574, 10880, 11818, 12160, 12440, 12920, 19904, 20672, 21148, 23636, 24880, 25840, 26435, 29545, 39808, 41344, 42296, 47272, 49760, 51680, 52870, 59090, 84592, 94544, 99520, 100453, 103360, 105740, 118180, 169184, 189088, 199040, 200906, 206720, 211480, 236360, 338368, 378176, 401812, 422960, 472720, 502265, 676736, 756352, 803624, 845920, 945440, 1004530, 1607248, 1691840, 1890880, 2009060, 3214496, 3383680, 3781760, 4018120, 6428992, 8036240, 12857984, 16072480, 32144960, 64289920]

約数ペア:

[(1, 64289920), (2, 32144960), (4, 16072480), (5, 12857984), (8, 8036240), (10, 6428992), (16, 4018120), (17, 3781760), (19, 3383680), (20, 3214496), (32, 2009060), (34, 1890880), (38, 1691840), (40, 1607248), (64, 1004530), (68, 945440), (76, 845920), (80, 803624), (85, 756352), (95, 676736), (128, 502265), (136, 472720), (152, 422960), (160, 401812), (170, 378176), (190, 338368), (272, 236360), (304, 211480), (311, 206720), (320, 200906), (323, 199040), (340, 189088), (380, 169184), (544, 118180), (608, 105740), (622, 103360), (640, 100453), (646, 99520), (680, 94544), (760, 84592), (1088, 59090), (1216, 52870), (1244, 51680), (1292, 49760), (1360, 47272), (1520, 42296), (1555, 41344), (1615, 39808), (2176, 29545), (2432, 26435), (2488, 25840), (2584, 24880), (2720, 23636), (3040, 21148), (3110, 20672), (3230, 19904), (4976, 12920), (5168, 12440), (5287, 12160), (5440, 11818), (5909, 10880), (6080, 10574), (6220, 10336), (6460, 9952)]