820899840

素因数分解:

$2^{12}\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{431}}^1$

素因数の和:494

約数の個数: 208

約数和(自身を含む): 2717577216

約数和(自身を除く): 1896677376

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 31, 32, 40, 48, 60, 62, 64, 80, 93, 96, 120, 124, 128, 155, 160, 186, 192, 240, 248, 256, 310, 320, 372, 384, 431, 465, 480, 496, 512, 620, 640, 744, 768, 862, 930, 960, 992, 1024, 1240, 1280, 1293, 1488, 1536, 1724, 1860, 1920, 1984, 2048, 2155, 2480, 2560, 2586, 2976, 3072, 3448, 3720, 3840, 3968, 4096, 4310, 4960, 5120, 5172, 5952, 6144, 6465, 6896, 7440, 7680, 7936, 8620, 9920, 10240, 10344, 11904, 12288, 12930, 13361, 13792, 14880, 15360, 15872, 17240, 19840, 20480, 20688, 23808, 25860, 26722, 27584, 29760, 30720, 31744, 34480, 39680, 40083, 41376, 47616, 51720, 53444, 55168, 59520, 61440, 63488, 66805, 68960, 79360, 80166, 82752, 95232, 103440, 106888, 110336, 119040, 126976, 133610, 137920, 158720, 160332, 165504, 190464, 200415, 206880, 213776, 220672, 238080, 267220, 275840, 317440, 320664, 331008, 380928, 400830, 413760, 427552, 441344, 476160, 534440, 551680, 634880, 641328, 662016, 801660, 827520, 855104, 882688, 952320, 1068880, 1103360, 1282656, 1324032, 1603320, 1655040, 1710208, 1765376, 1904640, 2137760, 2206720, 2565312, 2648064, 3206640, 3310080, 3420416, 4275520, 4413440, 5130624, 5296128, 6413280, 6620160, 6840832, 8551040, 8826880, 10261248, 12826560, 13240320, 13681664, 17102080, 20522496, 25653120, 26480640, 27363328, 34204160, 41044992, 51306240, 54726656, 68408320, 82089984, 102612480, 136816640, 164179968, 205224960, 273633280, 410449920, 820899840]

約数ペア:

[(1, 820899840), (2, 410449920), (3, 273633280), (4, 205224960), (5, 164179968), (6, 136816640), (8, 102612480), (10, 82089984), (12, 68408320), (15, 54726656), (16, 51306240), (20, 41044992), (24, 34204160), (30, 27363328), (31, 26480640), (32, 25653120), (40, 20522496), (48, 17102080), (60, 13681664), (62, 13240320), (64, 12826560), (80, 10261248), (93, 8826880), (96, 8551040), (120, 6840832), (124, 6620160), (128, 6413280), (155, 5296128), (160, 5130624), (186, 4413440), (192, 4275520), (240, 3420416), (248, 3310080), (256, 3206640), (310, 2648064), (320, 2565312), (372, 2206720), (384, 2137760), (431, 1904640), (465, 1765376), (480, 1710208), (496, 1655040), (512, 1603320), (620, 1324032), (640, 1282656), (744, 1103360), (768, 1068880), (862, 952320), (930, 882688), (960, 855104), (992, 827520), (1024, 801660), (1240, 662016), (1280, 641328), (1293, 634880), (1488, 551680), (1536, 534440), (1724, 476160), (1860, 441344), (1920, 427552), (1984, 413760), (2048, 400830), (2155, 380928), (2480, 331008), (2560, 320664), (2586, 317440), (2976, 275840), (3072, 267220), (3448, 238080), (3720, 220672), (3840, 213776), (3968, 206880), (4096, 200415), (4310, 190464), (4960, 165504), (5120, 160332), (5172, 158720), (5952, 137920), (6144, 133610), (6465, 126976), (6896, 119040), (7440, 110336), (7680, 106888), (7936, 103440), (8620, 95232), (9920, 82752), (10240, 80166), (10344, 79360), (11904, 68960), (12288, 66805), (12930, 63488), (13361, 61440), (13792, 59520), (14880, 55168), (15360, 53444), (15872, 51720), (17240, 47616), (19840, 41376), (20480, 40083), (20688, 39680), (23808, 34480), (25860, 31744), (26722, 30720), (27584, 29760)]