1380784640

素因数分解:

$2^9\times 5^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{137}}^1$

素因数の和:318

約数の個数: 160

約数和(自身を含む): 3469492224

約数和(自身を除く): 2088707584

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 127, 128, 137, 155, 160, 248, 254, 256, 274, 310, 320, 496, 508, 512, 548, 620, 635, 640, 685, 992, 1016, 1096, 1240, 1270, 1280, 1370, 1984, 2032, 2192, 2480, 2540, 2560, 2740, 3937, 3968, 4064, 4247, 4384, 4960, 5080, 5480, 7874, 7936, 8128, 8494, 8768, 9920, 10160, 10960, 15748, 15872, 16256, 16988, 17399, 17536, 19685, 19840, 20320, 21235, 21920, 31496, 32512, 33976, 34798, 35072, 39370, 39680, 40640, 42470, 43840, 62992, 65024, 67952, 69596, 70144, 78740, 79360, 81280, 84940, 86995, 87680, 125984, 135904, 139192, 157480, 162560, 169880, 173990, 175360, 251968, 271808, 278384, 314960, 325120, 339760, 347980, 350720, 503936, 539369, 543616, 556768, 629920, 679520, 695960, 1007872, 1078738, 1087232, 1113536, 1259840, 1359040, 1391920, 2015744, 2157476, 2174464, 2227072, 2519680, 2696845, 2718080, 2783840, 4314952, 4454144, 5039360, 5393690, 5436160, 5567680, 8629904, 8908288, 10078720, 10787380, 10872320, 11135360, 17259808, 21574760, 22270720, 34519616, 43149520, 44541440, 69039232, 86299040, 138078464, 172598080, 276156928, 345196160, 690392320, 1380784640]

約数ペア:

[(1, 1380784640), (2, 690392320), (4, 345196160), (5, 276156928), (8, 172598080), (10, 138078464), (16, 86299040), (20, 69039232), (31, 44541440), (32, 43149520), (40, 34519616), (62, 22270720), (64, 21574760), (80, 17259808), (124, 11135360), (127, 10872320), (128, 10787380), (137, 10078720), (155, 8908288), (160, 8629904), (248, 5567680), (254, 5436160), (256, 5393690), (274, 5039360), (310, 4454144), (320, 4314952), (496, 2783840), (508, 2718080), (512, 2696845), (548, 2519680), (620, 2227072), (635, 2174464), (640, 2157476), (685, 2015744), (992, 1391920), (1016, 1359040), (1096, 1259840), (1240, 1113536), (1270, 1087232), (1280, 1078738), (1370, 1007872), (1984, 695960), (2032, 679520), (2192, 629920), (2480, 556768), (2540, 543616), (2560, 539369), (2740, 503936), (3937, 350720), (3968, 347980), (4064, 339760), (4247, 325120), (4384, 314960), (4960, 278384), (5080, 271808), (5480, 251968), (7874, 175360), (7936, 173990), (8128, 169880), (8494, 162560), (8768, 157480), (9920, 139192), (10160, 135904), (10960, 125984), (15748, 87680), (15872, 86995), (16256, 84940), (16988, 81280), (17399, 79360), (17536, 78740), (19685, 70144), (19840, 69596), (20320, 67952), (21235, 65024), (21920, 62992), (31496, 43840), (32512, 42470), (33976, 40640), (34798, 39680), (35072, 39370)]