78909040

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{140909}}^1$

素因数の和:140929

約数の個数: 40

約数和(自身を含む): 209674080

約数和(自身を除く): 130765040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 140909, 281818, 563636, 704545, 986363, 1127272, 1409090, 1972726, 2254544, 2818180, 3945452, 4931815, 5636360, 7890904, 9863630, 11272720, 15781808, 19727260, 39454520, 78909040]

約数ペア:

[(1, 78909040), (2, 39454520), (4, 19727260), (5, 15781808), (7, 11272720), (8, 9863630), (10, 7890904), (14, 5636360), (16, 4931815), (20, 3945452), (28, 2818180), (35, 2254544), (40, 1972726), (56, 1409090), (70, 1127272), (80, 986363), (112, 704545), (140, 563636), (280, 281818), (560, 140909)]