2155440

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{1283}}^1$

素因数の和:1306

約数の個数: 80

約数和(自身を含む): 7642368

約数和(自身を除く): 5486928

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1283, 1680, 2566, 3849, 5132, 6415, 7698, 8981, 10264, 12830, 15396, 17962, 19245, 20528, 25660, 26943, 30792, 35924, 38490, 44905, 51320, 53886, 61584, 71848, 76980, 89810, 102640, 107772, 134715, 143696, 153960, 179620, 215544, 269430, 307920, 359240, 431088, 538860, 718480, 1077720, 2155440]

約数ペア:

[(1, 2155440), (2, 1077720), (3, 718480), (4, 538860), (5, 431088), (6, 359240), (7, 307920), (8, 269430), (10, 215544), (12, 179620), (14, 153960), (15, 143696), (16, 134715), (20, 107772), (21, 102640), (24, 89810), (28, 76980), (30, 71848), (35, 61584), (40, 53886), (42, 51320), (48, 44905), (56, 38490), (60, 35924), (70, 30792), (80, 26943), (84, 25660), (105, 20528), (112, 19245), (120, 17962), (140, 15396), (168, 12830), (210, 10264), (240, 8981), (280, 7698), (336, 6415), (420, 5132), (560, 3849), (840, 2566), (1283, 1680)]