128271080

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{181}}^1\times {\mathrm{2531}}^1$

素因数の和:2730

約数の個数: 64

約数和(自身を含む): 331793280

約数和(自身を除く): 203522200

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 181, 280, 362, 724, 905, 1267, 1448, 1810, 2531, 2534, 3620, 5062, 5068, 6335, 7240, 10124, 10136, 12655, 12670, 17717, 20248, 25310, 25340, 35434, 50620, 50680, 70868, 88585, 101240, 141736, 177170, 354340, 458111, 708680, 916222, 1832444, 2290555, 3206777, 3664888, 4581110, 6413554, 9162220, 12827108, 16033885, 18324440, 25654216, 32067770, 64135540, 128271080]

約数ペア:

[(1, 128271080), (2, 64135540), (4, 32067770), (5, 25654216), (7, 18324440), (8, 16033885), (10, 12827108), (14, 9162220), (20, 6413554), (28, 4581110), (35, 3664888), (40, 3206777), (56, 2290555), (70, 1832444), (140, 916222), (181, 708680), (280, 458111), (362, 354340), (724, 177170), (905, 141736), (1267, 101240), (1448, 88585), (1810, 70868), (2531, 50680), (2534, 50620), (3620, 35434), (5062, 25340), (5068, 25310), (6335, 20248), (7240, 17717), (10124, 12670), (10136, 12655)]