1991911920

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{479}}^1\times {\mathrm{17327}}^1$

素因数の和:17822

約数の個数: 80

約数和(自身を含む): 6188175360

約数和(自身を除く): 4196263440

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 479, 958, 1437, 1916, 2395, 2874, 3832, 4790, 5748, 7185, 7664, 9580, 11496, 14370, 17327, 19160, 22992, 28740, 34654, 38320, 51981, 57480, 69308, 86635, 103962, 114960, 138616, 173270, 207924, 259905, 277232, 346540, 415848, 519810, 693080, 831696, 1039620, 1386160, 2079240, 4158480, 8299633, 16599266, 24898899, 33198532, 41498165, 49797798, 66397064, 82996330, 99595596, 124494495, 132794128, 165992660, 199191192, 248988990, 331985320, 398382384, 497977980, 663970640, 995955960, 1991911920]

約数ペア:

[(1, 1991911920), (2, 995955960), (3, 663970640), (4, 497977980), (5, 398382384), (6, 331985320), (8, 248988990), (10, 199191192), (12, 165992660), (15, 132794128), (16, 124494495), (20, 99595596), (24, 82996330), (30, 66397064), (40, 49797798), (48, 41498165), (60, 33198532), (80, 24898899), (120, 16599266), (240, 8299633), (479, 4158480), (958, 2079240), (1437, 1386160), (1916, 1039620), (2395, 831696), (2874, 693080), (3832, 519810), (4790, 415848), (5748, 346540), (7185, 277232), (7664, 259905), (9580, 207924), (11496, 173270), (14370, 138616), (17327, 114960), (19160, 103962), (22992, 86635), (28740, 69308), (34654, 57480), (38320, 51981)]