26780180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{971}}^1$

素因数の和:1184

約数の個数: 48

約数和(自身を含む): 64665216

約数和(自身を除く): 37885036

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 197, 394, 788, 971, 985, 1379, 1942, 1970, 2758, 3884, 3940, 4855, 5516, 6797, 6895, 9710, 13594, 13790, 19420, 27188, 27580, 33985, 67970, 135940, 191287, 382574, 765148, 956435, 1339009, 1912870, 2678018, 3825740, 5356036, 6695045, 13390090, 26780180]

約数ペア:

[(1, 26780180), (2, 13390090), (4, 6695045), (5, 5356036), (7, 3825740), (10, 2678018), (14, 1912870), (20, 1339009), (28, 956435), (35, 765148), (70, 382574), (140, 191287), (197, 135940), (394, 67970), (788, 33985), (971, 27580), (985, 27188), (1379, 19420), (1942, 13790), (1970, 13594), (2758, 9710), (3884, 6895), (3940, 6797), (4855, 5516)]