20679120

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{373}}^1$

素因数の和:410

約数の個数: 240

約数和(自身を含む): 86815872

約数和(自身を除く): 66136752

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, 15, 16, 18, 20, 21, 22, 24, 28, 30, 33, 35, 36, 40, 42, 44, 45, 48, 55, 56, 60, 63, 66, 70, 72, 77, 80, 84, 88, 90, 99, 105, 110, 112, 120, 126, 132, 140, 144, 154, 165, 168, 176, 180, 198, 210, 220, 231, 240, 252, 264, 280, 308, 315, 330, 336, 360, 373, 385, 396, 420, 440, 462, 495, 504, 528, 560, 616, 630, 660, 693, 720, 746, 770, 792, 840, 880, 924, 990, 1008, 1119, 1155, 1232, 1260, 1320, 1386, 1492, 1540, 1584, 1680, 1848, 1865, 1980, 2238, 2310, 2520, 2611, 2640, 2772, 2984, 3080, 3357, 3465, 3696, 3730, 3960, 4103, 4476, 4620, 5040, 5222, 5544, 5595, 5968, 6160, 6714, 6930, 7460, 7833, 7920, 8206, 8952, 9240, 10444, 11088, 11190, 12309, 13055, 13428, 13860, 14920, 15666, 16412, 16785, 17904, 18480, 20515, 20888, 22380, 23499, 24618, 26110, 26856, 27720, 28721, 29840, 31332, 32824, 33570, 36927, 39165, 41030, 41776, 44760, 46998, 49236, 52220, 53712, 55440, 57442, 61545, 62664, 65648, 67140, 73854, 78330, 82060, 86163, 89520, 93996, 98472, 104440, 114884, 117495, 123090, 125328, 134280, 143605, 147708, 156660, 164120, 172326, 184635, 187992, 196944, 208880, 229768, 234990, 246180, 258489, 268560, 287210, 295416, 313320, 328240, 344652, 369270, 375984, 430815, 459536, 469980, 492360, 516978, 574420, 590832, 626640, 689304, 738540, 861630, 939960, 984720, 1033956, 1148840, 1292445, 1378608, 1477080, 1723260, 1879920, 2067912, 2297680, 2584890, 2954160, 3446520, 4135824, 5169780, 6893040, 10339560, 20679120]

約数ペア:

[(1, 20679120), (2, 10339560), (3, 6893040), (4, 5169780), (5, 4135824), (6, 3446520), (7, 2954160), (8, 2584890), (9, 2297680), (10, 2067912), (11, 1879920), (12, 1723260), (14, 1477080), (15, 1378608), (16, 1292445), (18, 1148840), (20, 1033956), (21, 984720), (22, 939960), (24, 861630), (28, 738540), (30, 689304), (33, 626640), (35, 590832), (36, 574420), (40, 516978), (42, 492360), (44, 469980), (45, 459536), (48, 430815), (55, 375984), (56, 369270), (60, 344652), (63, 328240), (66, 313320), (70, 295416), (72, 287210), (77, 268560), (80, 258489), (84, 246180), (88, 234990), (90, 229768), (99, 208880), (105, 196944), (110, 187992), (112, 184635), (120, 172326), (126, 164120), (132, 156660), (140, 147708), (144, 143605), (154, 134280), (165, 125328), (168, 123090), (176, 117495), (180, 114884), (198, 104440), (210, 98472), (220, 93996), (231, 89520), (240, 86163), (252, 82060), (264, 78330), (280, 73854), (308, 67140), (315, 65648), (330, 62664), (336, 61545), (360, 57442), (373, 55440), (385, 53712), (396, 52220), (420, 49236), (440, 46998), (462, 44760), (495, 41776), (504, 41030), (528, 39165), (560, 36927), (616, 33570), (630, 32824), (660, 31332), (693, 29840), (720, 28721), (746, 27720), (770, 26856), (792, 26110), (840, 24618), (880, 23499), (924, 22380), (990, 20888), (1008, 20515), (1119, 18480), (1155, 17904), (1232, 16785), (1260, 16412), (1320, 15666), (1386, 14920), (1492, 13860), (1540, 13428), (1584, 13055), (1680, 12309), (1848, 11190), (1865, 11088), (1980, 10444), (2238, 9240), (2310, 8952), (2520, 8206), (2611, 7920), (2640, 7833), (2772, 7460), (2984, 6930), (3080, 6714), (3357, 6160), (3465, 5968), (3696, 5595), (3730, 5544), (3960, 5222), (4103, 5040), (4476, 4620)]