656587440

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{1279}}^1$

素因数の和:1352

約数の個数: 240

約数和(自身を含む): 2376990720

約数和(自身を除く): 1720403280

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 23, 24, 30, 31, 36, 40, 45, 46, 48, 60, 62, 69, 72, 80, 90, 92, 93, 115, 120, 124, 138, 144, 155, 180, 184, 186, 207, 230, 240, 248, 276, 279, 310, 345, 360, 368, 372, 414, 460, 465, 496, 552, 558, 620, 690, 713, 720, 744, 828, 920, 930, 1035, 1104, 1116, 1240, 1279, 1380, 1395, 1426, 1488, 1656, 1840, 1860, 2070, 2139, 2232, 2480, 2558, 2760, 2790, 2852, 3312, 3565, 3720, 3837, 4140, 4278, 4464, 5116, 5520, 5580, 5704, 6395, 6417, 7130, 7440, 7674, 8280, 8556, 10232, 10695, 11160, 11408, 11511, 12790, 12834, 14260, 15348, 16560, 17112, 19185, 20464, 21390, 22320, 23022, 25580, 25668, 28520, 29417, 30696, 32085, 34224, 38370, 39649, 42780, 46044, 51160, 51336, 57040, 57555, 58834, 61392, 64170, 76740, 79298, 85560, 88251, 92088, 102320, 102672, 115110, 117668, 118947, 128340, 147085, 153480, 158596, 171120, 176502, 184176, 198245, 230220, 235336, 237894, 256680, 264753, 294170, 306960, 317192, 353004, 356841, 396490, 441255, 460440, 470672, 475788, 513360, 529506, 588340, 594735, 634384, 706008, 713682, 792980, 882510, 911927, 920880, 951576, 1059012, 1176680, 1189470, 1323765, 1412016, 1427364, 1585960, 1765020, 1784205, 1823854, 1903152, 2118024, 2353360, 2378940, 2647530, 2735781, 2854728, 3171920, 3530040, 3568410, 3647708, 4236048, 4559635, 4757880, 5295060, 5471562, 5709456, 7060080, 7136820, 7295416, 8207343, 9119270, 9515760, 10590120, 10943124, 13678905, 14273640, 14590832, 16414686, 18238540, 21180240, 21886248, 27357810, 28547280, 32829372, 36477080, 41036715, 43772496, 54715620, 65658744, 72954160, 82073430, 109431240, 131317488, 164146860, 218862480, 328293720, 656587440]

約数ペア:

[(1, 656587440), (2, 328293720), (3, 218862480), (4, 164146860), (5, 131317488), (6, 109431240), (8, 82073430), (9, 72954160), (10, 65658744), (12, 54715620), (15, 43772496), (16, 41036715), (18, 36477080), (20, 32829372), (23, 28547280), (24, 27357810), (30, 21886248), (31, 21180240), (36, 18238540), (40, 16414686), (45, 14590832), (46, 14273640), (48, 13678905), (60, 10943124), (62, 10590120), (69, 9515760), (72, 9119270), (80, 8207343), (90, 7295416), (92, 7136820), (93, 7060080), (115, 5709456), (120, 5471562), (124, 5295060), (138, 4757880), (144, 4559635), (155, 4236048), (180, 3647708), (184, 3568410), (186, 3530040), (207, 3171920), (230, 2854728), (240, 2735781), (248, 2647530), (276, 2378940), (279, 2353360), (310, 2118024), (345, 1903152), (360, 1823854), (368, 1784205), (372, 1765020), (414, 1585960), (460, 1427364), (465, 1412016), (496, 1323765), (552, 1189470), (558, 1176680), (620, 1059012), (690, 951576), (713, 920880), (720, 911927), (744, 882510), (828, 792980), (920, 713682), (930, 706008), (1035, 634384), (1104, 594735), (1116, 588340), (1240, 529506), (1279, 513360), (1380, 475788), (1395, 470672), (1426, 460440), (1488, 441255), (1656, 396490), (1840, 356841), (1860, 353004), (2070, 317192), (2139, 306960), (2232, 294170), (2480, 264753), (2558, 256680), (2760, 237894), (2790, 235336), (2852, 230220), (3312, 198245), (3565, 184176), (3720, 176502), (3837, 171120), (4140, 158596), (4278, 153480), (4464, 147085), (5116, 128340), (5520, 118947), (5580, 117668), (5704, 115110), (6395, 102672), (6417, 102320), (7130, 92088), (7440, 88251), (7674, 85560), (8280, 79298), (8556, 76740), (10232, 64170), (10695, 61392), (11160, 58834), (11408, 57555), (11511, 57040), (12790, 51336), (12834, 51160), (14260, 46044), (15348, 42780), (16560, 39649), (17112, 38370), (19185, 34224), (20464, 32085), (21390, 30696), (22320, 29417), (23022, 28520), (25580, 25668)]