68487840

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{199}}^1\times {\mathrm{239}}^1$

素因数の和:459

約数の個数: 144

約数和(自身を含む): 235872000

約数和(自身を除く): 167384160

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, 72, 80, 90, 96, 120, 144, 160, 180, 199, 239, 240, 288, 360, 398, 478, 480, 597, 717, 720, 796, 956, 995, 1194, 1195, 1434, 1440, 1592, 1791, 1912, 1990, 2151, 2388, 2390, 2868, 2985, 3184, 3582, 3585, 3824, 3980, 4302, 4776, 4780, 5736, 5970, 6368, 7164, 7170, 7648, 7960, 8604, 8955, 9552, 9560, 10755, 11472, 11940, 14328, 14340, 15920, 17208, 17910, 19104, 19120, 21510, 22944, 23880, 28656, 28680, 31840, 34416, 35820, 38240, 43020, 47561, 47760, 57312, 57360, 68832, 71640, 86040, 95122, 95520, 114720, 142683, 143280, 172080, 190244, 237805, 285366, 286560, 344160, 380488, 428049, 475610, 570732, 713415, 760976, 856098, 951220, 1141464, 1426830, 1521952, 1712196, 1902440, 2140245, 2282928, 2853660, 3424392, 3804880, 4280490, 4565856, 5707320, 6848784, 7609760, 8560980, 11414640, 13697568, 17121960, 22829280, 34243920, 68487840]

約数ペア:

[(1, 68487840), (2, 34243920), (3, 22829280), (4, 17121960), (5, 13697568), (6, 11414640), (8, 8560980), (9, 7609760), (10, 6848784), (12, 5707320), (15, 4565856), (16, 4280490), (18, 3804880), (20, 3424392), (24, 2853660), (30, 2282928), (32, 2140245), (36, 1902440), (40, 1712196), (45, 1521952), (48, 1426830), (60, 1141464), (72, 951220), (80, 856098), (90, 760976), (96, 713415), (120, 570732), (144, 475610), (160, 428049), (180, 380488), (199, 344160), (239, 286560), (240, 285366), (288, 237805), (360, 190244), (398, 172080), (478, 143280), (480, 142683), (597, 114720), (717, 95520), (720, 95122), (796, 86040), (956, 71640), (995, 68832), (1194, 57360), (1195, 57312), (1434, 47760), (1440, 47561), (1592, 43020), (1791, 38240), (1912, 35820), (1990, 34416), (2151, 31840), (2388, 28680), (2390, 28656), (2868, 23880), (2985, 22944), (3184, 21510), (3582, 19120), (3585, 19104), (3824, 17910), (3980, 17208), (4302, 15920), (4776, 14340), (4780, 14328), (5736, 11940), (5970, 11472), (6368, 10755), (7164, 9560), (7170, 9552), (7648, 8955), (7960, 8604)]