2784440

素因数分解:

$2^3\times 5^1\times {\mathrm{151}}^1\times {\mathrm{461}}^1$

素因数の和:623

約数の個数: 32

約数和(自身を含む): 6320160

約数和(自身を除く): 3535720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 151, 302, 461, 604, 755, 922, 1208, 1510, 1844, 2305, 3020, 3688, 4610, 6040, 9220, 18440, 69611, 139222, 278444, 348055, 556888, 696110, 1392220, 2784440]

約数ペア:

[(1, 2784440), (2, 1392220), (4, 696110), (5, 556888), (8, 348055), (10, 278444), (20, 139222), (40, 69611), (151, 18440), (302, 9220), (461, 6040), (604, 4610), (755, 3688), (922, 3020), (1208, 2305), (1510, 1844)]