20206560

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1$

素因数の和:161

約数の個数: 192

約数和(自身を含む): 71850240

約数和(自身を除く): 51643680

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 30, 32, 33, 40, 43, 44, 48, 55, 60, 66, 80, 86, 88, 89, 96, 110, 120, 129, 132, 160, 165, 172, 176, 178, 215, 220, 240, 258, 264, 267, 330, 344, 352, 356, 430, 440, 445, 473, 480, 516, 528, 534, 645, 660, 688, 712, 860, 880, 890, 946, 979, 1032, 1056, 1068, 1290, 1320, 1335, 1376, 1419, 1424, 1720, 1760, 1780, 1892, 1958, 2064, 2136, 2365, 2580, 2640, 2670, 2838, 2848, 2937, 3440, 3560, 3784, 3827, 3916, 4128, 4272, 4730, 4895, 5160, 5280, 5340, 5676, 5874, 6880, 7095, 7120, 7568, 7654, 7832, 8544, 9460, 9790, 10320, 10680, 11352, 11481, 11748, 14190, 14240, 14685, 15136, 15308, 15664, 18920, 19135, 19580, 20640, 21360, 22704, 22962, 23496, 28380, 29370, 30616, 31328, 37840, 38270, 39160, 42097, 42720, 45408, 45924, 46992, 56760, 57405, 58740, 61232, 75680, 76540, 78320, 84194, 91848, 93984, 113520, 114810, 117480, 122464, 126291, 153080, 156640, 168388, 183696, 210485, 227040, 229620, 234960, 252582, 306160, 336776, 367392, 420970, 459240, 469920, 505164, 612320, 631455, 673552, 841940, 918480, 1010328, 1262910, 1347104, 1683880, 1836960, 2020656, 2525820, 3367760, 4041312, 5051640, 6735520, 10103280, 20206560]

約数ペア:

[(1, 20206560), (2, 10103280), (3, 6735520), (4, 5051640), (5, 4041312), (6, 3367760), (8, 2525820), (10, 2020656), (11, 1836960), (12, 1683880), (15, 1347104), (16, 1262910), (20, 1010328), (22, 918480), (24, 841940), (30, 673552), (32, 631455), (33, 612320), (40, 505164), (43, 469920), (44, 459240), (48, 420970), (55, 367392), (60, 336776), (66, 306160), (80, 252582), (86, 234960), (88, 229620), (89, 227040), (96, 210485), (110, 183696), (120, 168388), (129, 156640), (132, 153080), (160, 126291), (165, 122464), (172, 117480), (176, 114810), (178, 113520), (215, 93984), (220, 91848), (240, 84194), (258, 78320), (264, 76540), (267, 75680), (330, 61232), (344, 58740), (352, 57405), (356, 56760), (430, 46992), (440, 45924), (445, 45408), (473, 42720), (480, 42097), (516, 39160), (528, 38270), (534, 37840), (645, 31328), (660, 30616), (688, 29370), (712, 28380), (860, 23496), (880, 22962), (890, 22704), (946, 21360), (979, 20640), (1032, 19580), (1056, 19135), (1068, 18920), (1290, 15664), (1320, 15308), (1335, 15136), (1376, 14685), (1419, 14240), (1424, 14190), (1720, 11748), (1760, 11481), (1780, 11352), (1892, 10680), (1958, 10320), (2064, 9790), (2136, 9460), (2365, 8544), (2580, 7832), (2640, 7654), (2670, 7568), (2838, 7120), (2848, 7095), (2937, 6880), (3440, 5874), (3560, 5676), (3784, 5340), (3827, 5280), (3916, 5160), (4128, 4895), (4272, 4730)]