553645640

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{101}}^1\times {\mathrm{3187}}^1$

素因数の和:3342

約数の個数: 64

約数和(自身を含む): 1287696960

約数和(自身を除く): 734051320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 101, 172, 202, 215, 344, 404, 430, 505, 808, 860, 1010, 1720, 2020, 3187, 4040, 4343, 6374, 8686, 12748, 15935, 17372, 21715, 25496, 31870, 34744, 43430, 63740, 86860, 127480, 137041, 173720, 274082, 321887, 548164, 643774, 685205, 1096328, 1287548, 1370410, 1609435, 2575096, 2740820, 3218870, 5481640, 6437740, 12875480, 13841141, 27682282, 55364564, 69205705, 110729128, 138411410, 276822820, 553645640]

約数ペア:

[(1, 553645640), (2, 276822820), (4, 138411410), (5, 110729128), (8, 69205705), (10, 55364564), (20, 27682282), (40, 13841141), (43, 12875480), (86, 6437740), (101, 5481640), (172, 3218870), (202, 2740820), (215, 2575096), (344, 1609435), (404, 1370410), (430, 1287548), (505, 1096328), (808, 685205), (860, 643774), (1010, 548164), (1720, 321887), (2020, 274082), (3187, 173720), (4040, 137041), (4343, 127480), (6374, 86860), (8686, 63740), (12748, 43430), (15935, 34744), (17372, 31870), (21715, 25496)]