207659840

素因数分解:

$2^6\times 5^1\times {\mathrm{648937}}^1$

素因数の和:648954

約数の個数: 28

約数和(自身を含む): 494490756

約数和(自身を除く): 286830916

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 648937, 1297874, 2595748, 3244685, 5191496, 6489370, 10382992, 12978740, 20765984, 25957480, 41531968, 51914960, 103829920, 207659840]

約数ペア:

[(1, 207659840), (2, 103829920), (4, 51914960), (5, 41531968), (8, 25957480), (10, 20765984), (16, 12978740), (20, 10382992), (32, 6489370), (40, 5191496), (64, 3244685), (80, 2595748), (160, 1297874), (320, 648937)]