79090400

素因数分解:

$2^5\times 5^2\times {\mathrm{109}}^1\times {\mathrm{907}}^1$

素因数の和:1036

約数の個数: 72

約数和(自身を含む): 195065640

約数和(自身を除く): 115975240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 109, 160, 200, 218, 400, 436, 545, 800, 872, 907, 1090, 1744, 1814, 2180, 2725, 3488, 3628, 4360, 4535, 5450, 7256, 8720, 9070, 10900, 14512, 17440, 18140, 21800, 22675, 29024, 36280, 43600, 45350, 72560, 87200, 90700, 98863, 145120, 181400, 197726, 362800, 395452, 494315, 725600, 790904, 988630, 1581808, 1977260, 2471575, 3163616, 3954520, 4943150, 7909040, 9886300, 15818080, 19772600, 39545200, 79090400]

約数ペア:

[(1, 79090400), (2, 39545200), (4, 19772600), (5, 15818080), (8, 9886300), (10, 7909040), (16, 4943150), (20, 3954520), (25, 3163616), (32, 2471575), (40, 1977260), (50, 1581808), (80, 988630), (100, 790904), (109, 725600), (160, 494315), (200, 395452), (218, 362800), (400, 197726), (436, 181400), (545, 145120), (800, 98863), (872, 90700), (907, 87200), (1090, 72560), (1744, 45350), (1814, 43600), (2180, 36280), (2725, 29024), (3488, 22675), (3628, 21800), (4360, 18140), (4535, 17440), (5450, 14512), (7256, 10900), (8720, 9070)]