278939520

素因数分解:

$2^7\times 3^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{613}}^1$

素因数の和:717

約数の個数: 192

約数和(自身を含む): 976996800

約数和(自身を除く): 698057280

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 64, 72, 79, 80, 90, 96, 120, 128, 144, 158, 160, 180, 192, 237, 240, 288, 316, 320, 360, 384, 395, 474, 480, 576, 613, 632, 640, 711, 720, 790, 948, 960, 1152, 1185, 1226, 1264, 1422, 1440, 1580, 1839, 1896, 1920, 2370, 2452, 2528, 2844, 2880, 3065, 3160, 3555, 3678, 3792, 4740, 4904, 5056, 5517, 5688, 5760, 6130, 6320, 7110, 7356, 7584, 9195, 9480, 9808, 10112, 11034, 11376, 12260, 12640, 14220, 14712, 15168, 18390, 18960, 19616, 22068, 22752, 24520, 25280, 27585, 28440, 29424, 30336, 36780, 37920, 39232, 44136, 45504, 48427, 49040, 50560, 55170, 56880, 58848, 73560, 75840, 78464, 88272, 91008, 96854, 98080, 110340, 113760, 117696, 145281, 147120, 151680, 176544, 193708, 196160, 220680, 227520, 235392, 242135, 290562, 294240, 353088, 387416, 392320, 435843, 441360, 455040, 484270, 581124, 588480, 706176, 726405, 774832, 871686, 882720, 968540, 1162248, 1176960, 1452810, 1549664, 1743372, 1765440, 1937080, 2179215, 2324496, 2905620, 3099328, 3486744, 3530880, 3874160, 4358430, 4648992, 5811240, 6198656, 6973488, 7748320, 8716860, 9297984, 11622480, 13946976, 15496640, 17433720, 18595968, 23244960, 27893952, 30993280, 34867440, 46489920, 55787904, 69734880, 92979840, 139469760, 278939520]

約数ペア:

[(1, 278939520), (2, 139469760), (3, 92979840), (4, 69734880), (5, 55787904), (6, 46489920), (8, 34867440), (9, 30993280), (10, 27893952), (12, 23244960), (15, 18595968), (16, 17433720), (18, 15496640), (20, 13946976), (24, 11622480), (30, 9297984), (32, 8716860), (36, 7748320), (40, 6973488), (45, 6198656), (48, 5811240), (60, 4648992), (64, 4358430), (72, 3874160), (79, 3530880), (80, 3486744), (90, 3099328), (96, 2905620), (120, 2324496), (128, 2179215), (144, 1937080), (158, 1765440), (160, 1743372), (180, 1549664), (192, 1452810), (237, 1176960), (240, 1162248), (288, 968540), (316, 882720), (320, 871686), (360, 774832), (384, 726405), (395, 706176), (474, 588480), (480, 581124), (576, 484270), (613, 455040), (632, 441360), (640, 435843), (711, 392320), (720, 387416), (790, 353088), (948, 294240), (960, 290562), (1152, 242135), (1185, 235392), (1226, 227520), (1264, 220680), (1422, 196160), (1440, 193708), (1580, 176544), (1839, 151680), (1896, 147120), (1920, 145281), (2370, 117696), (2452, 113760), (2528, 110340), (2844, 98080), (2880, 96854), (3065, 91008), (3160, 88272), (3555, 78464), (3678, 75840), (3792, 73560), (4740, 58848), (4904, 56880), (5056, 55170), (5517, 50560), (5688, 49040), (5760, 48427), (6130, 45504), (6320, 44136), (7110, 39232), (7356, 37920), (7584, 36780), (9195, 30336), (9480, 29424), (9808, 28440), (10112, 27585), (11034, 25280), (11376, 24520), (12260, 22752), (12640, 22068), (14220, 19616), (14712, 18960), (15168, 18390)]