8981360

素因数分解:

$2^4\times 5^1\times {\mathrm{131}}^1\times {\mathrm{857}}^1$

素因数の和:1001

約数の個数: 40

約数和(自身を含む): 21065616

約数和(自身を除く): 12084256

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 131, 262, 524, 655, 857, 1048, 1310, 1714, 2096, 2620, 3428, 4285, 5240, 6856, 8570, 10480, 13712, 17140, 34280, 68560, 112267, 224534, 449068, 561335, 898136, 1122670, 1796272, 2245340, 4490680, 8981360]

約数ペア:

[(1, 8981360), (2, 4490680), (4, 2245340), (5, 1796272), (8, 1122670), (10, 898136), (16, 561335), (20, 449068), (40, 224534), (80, 112267), (131, 68560), (262, 34280), (524, 17140), (655, 13712), (857, 10480), (1048, 8570), (1310, 6856), (1714, 5240), (2096, 4285), (2620, 3428)]