218877440

素因数分解:

$2^9\times 5^1\times {\mathrm{193}}^1\times {\mathrm{443}}^1$

素因数の和:659

約数の個数: 80

約数和(自身を含む): 528702768

約数和(自身を除く): 309825328

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 193, 256, 320, 386, 443, 512, 640, 772, 886, 965, 1280, 1544, 1772, 1930, 2215, 2560, 3088, 3544, 3860, 4430, 6176, 7088, 7720, 8860, 12352, 14176, 15440, 17720, 24704, 28352, 30880, 35440, 49408, 56704, 61760, 70880, 85499, 98816, 113408, 123520, 141760, 170998, 226816, 247040, 283520, 341996, 427495, 494080, 567040, 683992, 854990, 1134080, 1367984, 1709980, 2735968, 3419960, 5471936, 6839920, 10943872, 13679840, 21887744, 27359680, 43775488, 54719360, 109438720, 218877440]

約数ペア:

[(1, 218877440), (2, 109438720), (4, 54719360), (5, 43775488), (8, 27359680), (10, 21887744), (16, 13679840), (20, 10943872), (32, 6839920), (40, 5471936), (64, 3419960), (80, 2735968), (128, 1709980), (160, 1367984), (193, 1134080), (256, 854990), (320, 683992), (386, 567040), (443, 494080), (512, 427495), (640, 341996), (772, 283520), (886, 247040), (965, 226816), (1280, 170998), (1544, 141760), (1772, 123520), (1930, 113408), (2215, 98816), (2560, 85499), (3088, 70880), (3544, 61760), (3860, 56704), (4430, 49408), (6176, 35440), (7088, 30880), (7720, 28352), (8860, 24704), (12352, 17720), (14176, 15440)]