203922040

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{728293}}^1$

素因数の和:728311

約数の個数: 32

約数和(自身を含む): 524371680

約数和(自身を除く): 320449640

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 728293, 1456586, 2913172, 3641465, 5098051, 5826344, 7282930, 10196102, 14565860, 20392204, 25490255, 29131720, 40784408, 50980510, 101961020, 203922040]

約数ペア:

[(1, 203922040), (2, 101961020), (4, 50980510), (5, 40784408), (7, 29131720), (8, 25490255), (10, 20392204), (14, 14565860), (20, 10196102), (28, 7282930), (35, 5826344), (40, 5098051), (56, 3641465), (70, 2913172), (140, 1456586), (280, 728293)]