80021480

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{25981}}^1$

素因数の和:26010

約数の個数: 64

約数和(自身を含む): 224484480

約数和(自身を除く): 144463000

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 35, 40, 44, 55, 56, 70, 77, 88, 110, 140, 154, 220, 280, 308, 385, 440, 616, 770, 1540, 3080, 25981, 51962, 103924, 129905, 181867, 207848, 259810, 285791, 363734, 519620, 571582, 727468, 909335, 1039240, 1143164, 1428955, 1454936, 1818670, 2000537, 2286328, 2857910, 3637340, 4001074, 5715820, 7274680, 8002148, 10002685, 11431640, 16004296, 20005370, 40010740, 80021480]

約数ペア:

[(1, 80021480), (2, 40010740), (4, 20005370), (5, 16004296), (7, 11431640), (8, 10002685), (10, 8002148), (11, 7274680), (14, 5715820), (20, 4001074), (22, 3637340), (28, 2857910), (35, 2286328), (40, 2000537), (44, 1818670), (55, 1454936), (56, 1428955), (70, 1143164), (77, 1039240), (88, 909335), (110, 727468), (140, 571582), (154, 519620), (220, 363734), (280, 285791), (308, 259810), (385, 207848), (440, 181867), (616, 129905), (770, 103924), (1540, 51962), (3080, 25981)]