64240720

素因数分解:

$2^4\times 5^1\times {\mathrm{857}}^1\times {\mathrm{937}}^1$

素因数の和:1807

約数の個数: 40

約数和(自身を含む): 149693544

約数和(自身を除く): 85452824

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 857, 937, 1714, 1874, 3428, 3748, 4285, 4685, 6856, 7496, 8570, 9370, 13712, 14992, 17140, 18740, 34280, 37480, 68560, 74960, 803009, 1606018, 3212036, 4015045, 6424072, 8030090, 12848144, 16060180, 32120360, 64240720]

約数ペア:

[(1, 64240720), (2, 32120360), (4, 16060180), (5, 12848144), (8, 8030090), (10, 6424072), (16, 4015045), (20, 3212036), (40, 1606018), (80, 803009), (857, 74960), (937, 68560), (1714, 37480), (1874, 34280), (3428, 18740), (3748, 17140), (4285, 14992), (4685, 13712), (6856, 9370), (7496, 8570)]