180939920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{3331}}^1$

素因数の和:3448

約数の個数: 80

約数和(自身を含む): 485885568

約数和(自身を除く): 304945648

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 97, 112, 140, 194, 280, 388, 485, 560, 679, 776, 970, 1358, 1552, 1940, 2716, 3331, 3395, 3880, 5432, 6662, 6790, 7760, 10864, 13324, 13580, 16655, 23317, 26648, 27160, 33310, 46634, 53296, 54320, 66620, 93268, 116585, 133240, 186536, 233170, 266480, 323107, 373072, 466340, 646214, 932680, 1292428, 1615535, 1865360, 2261749, 2584856, 3231070, 4523498, 5169712, 6462140, 9046996, 11308745, 12924280, 18093992, 22617490, 25848560, 36187984, 45234980, 90469960, 180939920]

約数ペア:

[(1, 180939920), (2, 90469960), (4, 45234980), (5, 36187984), (7, 25848560), (8, 22617490), (10, 18093992), (14, 12924280), (16, 11308745), (20, 9046996), (28, 6462140), (35, 5169712), (40, 4523498), (56, 3231070), (70, 2584856), (80, 2261749), (97, 1865360), (112, 1615535), (140, 1292428), (194, 932680), (280, 646214), (388, 466340), (485, 373072), (560, 323107), (679, 266480), (776, 233170), (970, 186536), (1358, 133240), (1552, 116585), (1940, 93268), (2716, 66620), (3331, 54320), (3395, 53296), (3880, 46634), (5432, 33310), (6662, 27160), (6790, 26648), (7760, 23317), (10864, 16655), (13324, 13580)]