20903014720

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{1447}}^1\times {\mathrm{6449}}^1$

素因数の和:7920

約数の個数: 112

約数和(自身を含む): 56934201600

約数和(自身を除く): 36031186880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 140, 160, 224, 280, 320, 448, 560, 1120, 1447, 2240, 2894, 5788, 6449, 7235, 10129, 11576, 12898, 14470, 20258, 23152, 25796, 28940, 32245, 40516, 45143, 46304, 50645, 51592, 57880, 64490, 81032, 90286, 92608, 101290, 103184, 115760, 128980, 162064, 180572, 202580, 206368, 225715, 231520, 257960, 324128, 361144, 405160, 412736, 451430, 463040, 515920, 648256, 722288, 810320, 902860, 1031840, 1444576, 1620640, 1805720, 2063680, 2889152, 3241280, 3611440, 7222880, 9331703, 14445760, 18663406, 37326812, 46658515, 65321921, 74653624, 93317030, 130643842, 149307248, 186634060, 261287684, 298614496, 326609605, 373268120, 522575368, 597228992, 653219210, 746536240, 1045150736, 1306438420, 1493072480, 2090301472, 2612876840, 2986144960, 4180602944, 5225753680, 10451507360, 20903014720]

約数ペア:

[(1, 20903014720), (2, 10451507360), (4, 5225753680), (5, 4180602944), (7, 2986144960), (8, 2612876840), (10, 2090301472), (14, 1493072480), (16, 1306438420), (20, 1045150736), (28, 746536240), (32, 653219210), (35, 597228992), (40, 522575368), (56, 373268120), (64, 326609605), (70, 298614496), (80, 261287684), (112, 186634060), (140, 149307248), (160, 130643842), (224, 93317030), (280, 74653624), (320, 65321921), (448, 46658515), (560, 37326812), (1120, 18663406), (1447, 14445760), (2240, 9331703), (2894, 7222880), (5788, 3611440), (6449, 3241280), (7235, 2889152), (10129, 2063680), (11576, 1805720), (12898, 1620640), (14470, 1444576), (20258, 1031840), (23152, 902860), (25796, 810320), (28940, 722288), (32245, 648256), (40516, 515920), (45143, 463040), (46304, 451430), (50645, 412736), (51592, 405160), (57880, 361144), (64490, 324128), (81032, 257960), (90286, 231520), (92608, 225715), (101290, 206368), (103184, 202580), (115760, 180572), (128980, 162064)]