21384480

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{149}}^1$

素因数の和:203

約数の個数: 192

約数和(自身を含む): 76204800

約数和(自身を除く): 54820320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 23, 24, 26, 30, 32, 39, 40, 46, 48, 52, 60, 65, 69, 78, 80, 92, 96, 104, 115, 120, 130, 138, 149, 156, 160, 184, 195, 208, 230, 240, 260, 276, 298, 299, 312, 345, 368, 390, 416, 447, 460, 480, 520, 552, 596, 598, 624, 690, 736, 745, 780, 894, 897, 920, 1040, 1104, 1192, 1196, 1248, 1380, 1490, 1495, 1560, 1788, 1794, 1840, 1937, 2080, 2208, 2235, 2384, 2392, 2760, 2980, 2990, 3120, 3427, 3576, 3588, 3680, 3874, 4470, 4485, 4768, 4784, 5520, 5811, 5960, 5980, 6240, 6854, 7152, 7176, 7748, 8940, 8970, 9568, 9685, 10281, 11040, 11622, 11920, 11960, 13708, 14304, 14352, 15496, 17135, 17880, 17940, 19370, 20562, 23244, 23840, 23920, 27416, 28704, 29055, 30992, 34270, 35760, 35880, 38740, 41124, 44551, 46488, 47840, 51405, 54832, 58110, 61984, 68540, 71520, 71760, 77480, 82248, 89102, 92976, 102810, 109664, 116220, 133653, 137080, 143520, 154960, 164496, 178204, 185952, 205620, 222755, 232440, 267306, 274160, 309920, 328992, 356408, 411240, 445510, 464880, 534612, 548320, 668265, 712816, 822480, 891020, 929760, 1069224, 1336530, 1425632, 1644960, 1782040, 2138448, 2673060, 3564080, 4276896, 5346120, 7128160, 10692240, 21384480]

約数ペア:

[(1, 21384480), (2, 10692240), (3, 7128160), (4, 5346120), (5, 4276896), (6, 3564080), (8, 2673060), (10, 2138448), (12, 1782040), (13, 1644960), (15, 1425632), (16, 1336530), (20, 1069224), (23, 929760), (24, 891020), (26, 822480), (30, 712816), (32, 668265), (39, 548320), (40, 534612), (46, 464880), (48, 445510), (52, 411240), (60, 356408), (65, 328992), (69, 309920), (78, 274160), (80, 267306), (92, 232440), (96, 222755), (104, 205620), (115, 185952), (120, 178204), (130, 164496), (138, 154960), (149, 143520), (156, 137080), (160, 133653), (184, 116220), (195, 109664), (208, 102810), (230, 92976), (240, 89102), (260, 82248), (276, 77480), (298, 71760), (299, 71520), (312, 68540), (345, 61984), (368, 58110), (390, 54832), (416, 51405), (447, 47840), (460, 46488), (480, 44551), (520, 41124), (552, 38740), (596, 35880), (598, 35760), (624, 34270), (690, 30992), (736, 29055), (745, 28704), (780, 27416), (894, 23920), (897, 23840), (920, 23244), (1040, 20562), (1104, 19370), (1192, 17940), (1196, 17880), (1248, 17135), (1380, 15496), (1490, 14352), (1495, 14304), (1560, 13708), (1788, 11960), (1794, 11920), (1840, 11622), (1937, 11040), (2080, 10281), (2208, 9685), (2235, 9568), (2384, 8970), (2392, 8940), (2760, 7748), (2980, 7176), (2990, 7152), (3120, 6854), (3427, 6240), (3576, 5980), (3588, 5960), (3680, 5811), (3874, 5520), (4470, 4784), (4485, 4768)]