1285385920

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{1193}}^1$

素因数の和:1267

約数の個数: 224

約数和(自身を含む): 3872227968

約数和(自身を除く): 2586842048

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 32, 35, 37, 40, 52, 56, 64, 65, 70, 74, 80, 91, 104, 112, 130, 140, 148, 160, 182, 185, 208, 224, 259, 260, 280, 296, 320, 364, 370, 416, 448, 455, 481, 518, 520, 560, 592, 728, 740, 832, 910, 962, 1036, 1040, 1120, 1184, 1193, 1295, 1456, 1480, 1820, 1924, 2072, 2080, 2240, 2368, 2386, 2405, 2590, 2912, 2960, 3367, 3640, 3848, 4144, 4160, 4772, 4810, 5180, 5824, 5920, 5965, 6734, 7280, 7696, 8288, 8351, 9544, 9620, 10360, 11840, 11930, 13468, 14560, 15392, 15509, 16576, 16702, 16835, 19088, 19240, 20720, 23860, 26936, 29120, 30784, 31018, 33404, 33670, 38176, 38480, 41440, 41755, 44141, 47720, 53872, 62036, 66808, 67340, 76352, 76960, 77545, 82880, 83510, 88282, 95440, 107744, 108563, 124072, 133616, 134680, 153920, 155090, 167020, 176564, 190880, 215488, 217126, 220705, 248144, 267232, 269360, 308987, 310180, 334040, 353128, 381760, 434252, 441410, 496288, 534464, 538720, 542815, 573833, 617974, 620360, 668080, 706256, 868504, 882820, 992576, 1077440, 1085630, 1147666, 1235948, 1240720, 1336160, 1412512, 1544935, 1737008, 1765640, 2171260, 2295332, 2471896, 2481440, 2672320, 2825024, 2869165, 3089870, 3474016, 3531280, 4016831, 4342520, 4590664, 4943792, 4962880, 5738330, 6179740, 6948032, 7062560, 8033662, 8685040, 9181328, 9887584, 11476660, 12359480, 14125120, 16067324, 17370080, 18362656, 19775168, 20084155, 22953320, 24718960, 32134648, 34740160, 36725312, 40168310, 45906640, 49437920, 64269296, 80336620, 91813280, 98875840, 128538592, 160673240, 183626560, 257077184, 321346480, 642692960, 1285385920]

約数ペア:

[(1, 1285385920), (2, 642692960), (4, 321346480), (5, 257077184), (7, 183626560), (8, 160673240), (10, 128538592), (13, 98875840), (14, 91813280), (16, 80336620), (20, 64269296), (26, 49437920), (28, 45906640), (32, 40168310), (35, 36725312), (37, 34740160), (40, 32134648), (52, 24718960), (56, 22953320), (64, 20084155), (65, 19775168), (70, 18362656), (74, 17370080), (80, 16067324), (91, 14125120), (104, 12359480), (112, 11476660), (130, 9887584), (140, 9181328), (148, 8685040), (160, 8033662), (182, 7062560), (185, 6948032), (208, 6179740), (224, 5738330), (259, 4962880), (260, 4943792), (280, 4590664), (296, 4342520), (320, 4016831), (364, 3531280), (370, 3474016), (416, 3089870), (448, 2869165), (455, 2825024), (481, 2672320), (518, 2481440), (520, 2471896), (560, 2295332), (592, 2171260), (728, 1765640), (740, 1737008), (832, 1544935), (910, 1412512), (962, 1336160), (1036, 1240720), (1040, 1235948), (1120, 1147666), (1184, 1085630), (1193, 1077440), (1295, 992576), (1456, 882820), (1480, 868504), (1820, 706256), (1924, 668080), (2072, 620360), (2080, 617974), (2240, 573833), (2368, 542815), (2386, 538720), (2405, 534464), (2590, 496288), (2912, 441410), (2960, 434252), (3367, 381760), (3640, 353128), (3848, 334040), (4144, 310180), (4160, 308987), (4772, 269360), (4810, 267232), (5180, 248144), (5824, 220705), (5920, 217126), (5965, 215488), (6734, 190880), (7280, 176564), (7696, 167020), (8288, 155090), (8351, 153920), (9544, 134680), (9620, 133616), (10360, 124072), (11840, 108563), (11930, 107744), (13468, 95440), (14560, 88282), (15392, 83510), (15509, 82880), (16576, 77545), (16702, 76960), (16835, 76352), (19088, 67340), (19240, 66808), (20720, 62036), (23860, 53872), (26936, 47720), (29120, 44141), (30784, 41755), (31018, 41440), (33404, 38480), (33670, 38176)]