1221321456

素因数分解:

$2^4\times 3^3\times {\mathrm{37}}^1\times {\mathrm{109}}^1\times {\mathrm{701}}^1$

素因数の和:864

約数の個数: 160

約数和(自身を含む): 3638606400

約数和(自身を除く): 2417284944

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 36, 37, 48, 54, 72, 74, 108, 109, 111, 144, 148, 216, 218, 222, 296, 327, 333, 432, 436, 444, 592, 654, 666, 701, 872, 888, 981, 999, 1308, 1332, 1402, 1744, 1776, 1962, 1998, 2103, 2616, 2664, 2804, 2943, 3924, 3996, 4033, 4206, 5232, 5328, 5608, 5886, 6309, 7848, 7992, 8066, 8412, 11216, 11772, 12099, 12618, 15696, 15984, 16132, 16824, 18927, 23544, 24198, 25236, 25937, 32264, 33648, 36297, 37854, 47088, 48396, 50472, 51874, 64528, 72594, 75708, 76409, 77811, 96792, 100944, 103748, 108891, 145188, 151416, 152818, 155622, 193584, 207496, 217782, 229227, 233433, 290376, 302832, 305636, 311244, 414992, 435564, 458454, 466866, 580752, 611272, 622488, 687681, 700299, 871128, 916908, 933732, 1222544, 1244976, 1375362, 1400598, 1742256, 1833816, 1867464, 2063043, 2750724, 2801196, 2827133, 3667632, 3734928, 4126086, 5501448, 5602392, 5654266, 8252172, 8481399, 11002896, 11204784, 11308532, 16504344, 16962798, 22617064, 25444197, 33008688, 33925596, 45234128, 50888394, 67851192, 76332591, 101776788, 135702384, 152665182, 203553576, 305330364, 407107152, 610660728, 1221321456]

約数ペア:

[(1, 1221321456), (2, 610660728), (3, 407107152), (4, 305330364), (6, 203553576), (8, 152665182), (9, 135702384), (12, 101776788), (16, 76332591), (18, 67851192), (24, 50888394), (27, 45234128), (36, 33925596), (37, 33008688), (48, 25444197), (54, 22617064), (72, 16962798), (74, 16504344), (108, 11308532), (109, 11204784), (111, 11002896), (144, 8481399), (148, 8252172), (216, 5654266), (218, 5602392), (222, 5501448), (296, 4126086), (327, 3734928), (333, 3667632), (432, 2827133), (436, 2801196), (444, 2750724), (592, 2063043), (654, 1867464), (666, 1833816), (701, 1742256), (872, 1400598), (888, 1375362), (981, 1244976), (999, 1222544), (1308, 933732), (1332, 916908), (1402, 871128), (1744, 700299), (1776, 687681), (1962, 622488), (1998, 611272), (2103, 580752), (2616, 466866), (2664, 458454), (2804, 435564), (2943, 414992), (3924, 311244), (3996, 305636), (4033, 302832), (4206, 290376), (5232, 233433), (5328, 229227), (5608, 217782), (5886, 207496), (6309, 193584), (7848, 155622), (7992, 152818), (8066, 151416), (8412, 145188), (11216, 108891), (11772, 103748), (12099, 100944), (12618, 96792), (15696, 77811), (15984, 76409), (16132, 75708), (16824, 72594), (18927, 64528), (23544, 51874), (24198, 50472), (25236, 48396), (25937, 47088), (32264, 37854), (33648, 36297)]