12871120

素因数分解:

$2^4\times 5^1\times {\mathrm{349}}^1\times {\mathrm{461}}^1$

素因数の和:823

約数の個数: 40

約数和(自身を含む): 30076200

約数和(自身を除く): 17205080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 349, 461, 698, 922, 1396, 1745, 1844, 2305, 2792, 3490, 3688, 4610, 5584, 6980, 7376, 9220, 13960, 18440, 27920, 36880, 160889, 321778, 643556, 804445, 1287112, 1608890, 2574224, 3217780, 6435560, 12871120]

約数ペア:

[(1, 12871120), (2, 6435560), (4, 3217780), (5, 2574224), (8, 1608890), (10, 1287112), (16, 804445), (20, 643556), (40, 321778), (80, 160889), (349, 36880), (461, 27920), (698, 18440), (922, 13960), (1396, 9220), (1745, 7376), (1844, 6980), (2305, 5584), (2792, 4610), (3490, 3688)]