8045665180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{291721}}^1$

素因数の和:291934

約数の個数: 48

約数和(自身を含む): 19407681216

約数和(自身を除く): 11362016036

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 197, 394, 788, 985, 1379, 1970, 2758, 3940, 5516, 6895, 13790, 27580, 291721, 583442, 1166884, 1458605, 2042047, 2917210, 4084094, 5834420, 8168188, 10210235, 20420470, 40840940, 57469037, 114938074, 229876148, 287345185, 402283259, 574690370, 804566518, 1149380740, 1609133036, 2011416295, 4022832590, 8045665180]

約数ペア:

[(1, 8045665180), (2, 4022832590), (4, 2011416295), (5, 1609133036), (7, 1149380740), (10, 804566518), (14, 574690370), (20, 402283259), (28, 287345185), (35, 229876148), (70, 114938074), (140, 57469037), (197, 40840940), (394, 20420470), (788, 10210235), (985, 8168188), (1379, 5834420), (1970, 4084094), (2758, 2917210), (3940, 2042047), (5516, 1458605), (6895, 1166884), (13790, 583442), (27580, 291721)]