820301440

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{419}}^1$

素因数の和:487

約数の個数: 256

約数和(自身を含む): 2467584000

約数和(自身を除く): 1647282560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 23, 28, 32, 35, 38, 40, 46, 56, 64, 70, 76, 80, 92, 95, 112, 115, 128, 133, 140, 152, 160, 161, 184, 190, 224, 230, 266, 280, 304, 320, 322, 368, 380, 419, 437, 448, 460, 532, 560, 608, 640, 644, 665, 736, 760, 805, 838, 874, 896, 920, 1064, 1120, 1216, 1288, 1330, 1472, 1520, 1610, 1676, 1748, 1840, 2095, 2128, 2185, 2240, 2432, 2576, 2660, 2933, 2944, 3040, 3059, 3220, 3352, 3496, 3680, 4190, 4256, 4370, 4480, 5152, 5320, 5866, 6080, 6118, 6440, 6704, 6992, 7360, 7961, 8380, 8512, 8740, 9637, 10304, 10640, 11732, 12160, 12236, 12880, 13408, 13984, 14665, 14720, 15295, 15922, 16760, 17024, 17480, 19274, 20608, 21280, 23464, 24472, 25760, 26816, 27968, 29330, 30590, 31844, 33520, 34960, 38548, 39805, 42560, 46928, 48185, 48944, 51520, 53632, 55727, 55936, 58660, 61180, 63688, 67040, 67459, 69920, 77096, 79610, 85120, 93856, 96370, 97888, 103040, 111454, 117320, 122360, 127376, 134080, 134918, 139840, 154192, 159220, 183103, 187712, 192740, 195776, 222908, 234640, 244720, 254752, 268160, 269836, 278635, 279680, 308384, 318440, 337295, 366206, 375424, 385480, 391552, 445816, 469280, 489440, 509504, 539672, 557270, 616768, 636880, 674590, 732412, 770960, 891632, 915515, 938560, 978880, 1019008, 1079344, 1114540, 1233536, 1273760, 1281721, 1349180, 1464824, 1541920, 1783264, 1831030, 1877120, 1957760, 2158688, 2229080, 2547520, 2563442, 2698360, 2929648, 3083840, 3566528, 3662060, 4317376, 4458160, 5095040, 5126884, 5396720, 5859296, 6167680, 6408605, 7133056, 7324120, 8634752, 8916320, 10253768, 10793440, 11718592, 12817210, 14648240, 17832640, 20507536, 21586880, 23437184, 25634420, 29296480, 35665280, 41015072, 43173760, 51268840, 58592960, 82030144, 102537680, 117185920, 164060288, 205075360, 410150720, 820301440]

約数ペア:

[(1, 820301440), (2, 410150720), (4, 205075360), (5, 164060288), (7, 117185920), (8, 102537680), (10, 82030144), (14, 58592960), (16, 51268840), (19, 43173760), (20, 41015072), (23, 35665280), (28, 29296480), (32, 25634420), (35, 23437184), (38, 21586880), (40, 20507536), (46, 17832640), (56, 14648240), (64, 12817210), (70, 11718592), (76, 10793440), (80, 10253768), (92, 8916320), (95, 8634752), (112, 7324120), (115, 7133056), (128, 6408605), (133, 6167680), (140, 5859296), (152, 5396720), (160, 5126884), (161, 5095040), (184, 4458160), (190, 4317376), (224, 3662060), (230, 3566528), (266, 3083840), (280, 2929648), (304, 2698360), (320, 2563442), (322, 2547520), (368, 2229080), (380, 2158688), (419, 1957760), (437, 1877120), (448, 1831030), (460, 1783264), (532, 1541920), (560, 1464824), (608, 1349180), (640, 1281721), (644, 1273760), (665, 1233536), (736, 1114540), (760, 1079344), (805, 1019008), (838, 978880), (874, 938560), (896, 915515), (920, 891632), (1064, 770960), (1120, 732412), (1216, 674590), (1288, 636880), (1330, 616768), (1472, 557270), (1520, 539672), (1610, 509504), (1676, 489440), (1748, 469280), (1840, 445816), (2095, 391552), (2128, 385480), (2185, 375424), (2240, 366206), (2432, 337295), (2576, 318440), (2660, 308384), (2933, 279680), (2944, 278635), (3040, 269836), (3059, 268160), (3220, 254752), (3352, 244720), (3496, 234640), (3680, 222908), (4190, 195776), (4256, 192740), (4370, 187712), (4480, 183103), (5152, 159220), (5320, 154192), (5866, 139840), (6080, 134918), (6118, 134080), (6440, 127376), (6704, 122360), (6992, 117320), (7360, 111454), (7961, 103040), (8380, 97888), (8512, 96370), (8740, 93856), (9637, 85120), (10304, 79610), (10640, 77096), (11732, 69920), (12160, 67459), (12236, 67040), (12880, 63688), (13408, 61180), (13984, 58660), (14665, 55936), (14720, 55727), (15295, 53632), (15922, 51520), (16760, 48944), (17024, 48185), (17480, 46928), (19274, 42560), (20608, 39805), (21280, 38548), (23464, 34960), (24472, 33520), (25760, 31844), (26816, 30590), (27968, 29330)]