1987123712

素因数分解:

$2^9\times 7^1\times {\mathrm{41}}^1\times {\mathrm{13523}}^1$

素因数の和:13589

約数の個数: 80

約数和(自身を含む): 4648577472

約数和(自身を除く): 2661453760

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 41, 56, 64, 82, 112, 128, 164, 224, 256, 287, 328, 448, 512, 574, 656, 896, 1148, 1312, 1792, 2296, 2624, 3584, 4592, 5248, 9184, 10496, 13523, 18368, 20992, 27046, 36736, 54092, 73472, 94661, 108184, 146944, 189322, 216368, 378644, 432736, 554443, 757288, 865472, 1108886, 1514576, 1730944, 2217772, 3029152, 3461888, 3881101, 4435544, 6058304, 6923776, 7762202, 8871088, 12116608, 15524404, 17742176, 24233216, 31048808, 35484352, 48466432, 62097616, 70968704, 124195232, 141937408, 248390464, 283874816, 496780928, 993561856, 1987123712]

約数ペア:

[(1, 1987123712), (2, 993561856), (4, 496780928), (7, 283874816), (8, 248390464), (14, 141937408), (16, 124195232), (28, 70968704), (32, 62097616), (41, 48466432), (56, 35484352), (64, 31048808), (82, 24233216), (112, 17742176), (128, 15524404), (164, 12116608), (224, 8871088), (256, 7762202), (287, 6923776), (328, 6058304), (448, 4435544), (512, 3881101), (574, 3461888), (656, 3029152), (896, 2217772), (1148, 1730944), (1312, 1514576), (1792, 1108886), (2296, 865472), (2624, 757288), (3584, 554443), (4592, 432736), (5248, 378644), (9184, 216368), (10496, 189322), (13523, 146944), (18368, 108184), (20992, 94661), (27046, 73472), (36736, 54092)]