78812640

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{229}}^1\times {\mathrm{239}}^1$

素因数の和:489

約数の個数: 144

約数和(自身を含む): 271252800

約数和(自身を除く): 192440160

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, 229, 239, 240, 288, 360, 458, 478, 480, 687, 717, 720, 916, 956, 1145, 1195, 1374, 1434, 1440, 1832, 1912, 2061, 2151, 2290, 2390, 2748, 2868, 3435, 3585, 3664, 3824, 4122, 4302, 4580, 4780, 5496, 5736, 6870, 7170, 7328, 7648, 8244, 8604, 9160, 9560, 10305, 10755, 10992, 11472, 13740, 14340, 16488, 17208, 18320, 19120, 20610, 21510, 21984, 22944, 27480, 28680, 32976, 34416, 36640, 38240, 41220, 43020, 54731, 54960, 57360, 65952, 68832, 82440, 86040, 109462, 109920, 114720, 164193, 164880, 172080, 218924, 273655, 328386, 329760, 344160, 437848, 492579, 547310, 656772, 820965, 875696, 985158, 1094620, 1313544, 1641930, 1751392, 1970316, 2189240, 2462895, 2627088, 3283860, 3940632, 4378480, 4925790, 5254176, 6567720, 7881264, 8756960, 9851580, 13135440, 15762528, 19703160, 26270880, 39406320, 78812640]

約数ペア:

[(1, 78812640), (2, 39406320), (3, 26270880), (4, 19703160), (5, 15762528), (6, 13135440), (8, 9851580), (9, 8756960), (10, 7881264), (12, 6567720), (15, 5254176), (16, 4925790), (18, 4378480), (20, 3940632), (24, 3283860), (30, 2627088), (32, 2462895), (36, 2189240), (40, 1970316), (45, 1751392), (48, 1641930), (60, 1313544), (72, 1094620), (80, 985158), (90, 875696), (96, 820965), (120, 656772), (144, 547310), (160, 492579), (180, 437848), (229, 344160), (239, 329760), (240, 328386), (288, 273655), (360, 218924), (458, 172080), (478, 164880), (480, 164193), (687, 114720), (717, 109920), (720, 109462), (916, 86040), (956, 82440), (1145, 68832), (1195, 65952), (1374, 57360), (1434, 54960), (1440, 54731), (1832, 43020), (1912, 41220), (2061, 38240), (2151, 36640), (2290, 34416), (2390, 32976), (2748, 28680), (2868, 27480), (3435, 22944), (3585, 21984), (3664, 21510), (3824, 20610), (4122, 19120), (4302, 18320), (4580, 17208), (4780, 16488), (5496, 14340), (5736, 13740), (6870, 11472), (7170, 10992), (7328, 10755), (7648, 10305), (8244, 9560), (8604, 9160)]