77899840

素因数分解:

$2^6\times 5^1\times {\mathrm{243437}}^1$

素因数の和:243454

約数の個数: 28

約数和(自身を含む): 185499756

約数和(自身を除く): 107599916

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 243437, 486874, 973748, 1217185, 1947496, 2434370, 3894992, 4868740, 7789984, 9737480, 15579968, 19474960, 38949920, 77899840]

約数ペア:

[(1, 77899840), (2, 38949920), (4, 19474960), (5, 15579968), (8, 9737480), (10, 7789984), (16, 4868740), (20, 3894992), (32, 2434370), (40, 1947496), (64, 1217185), (80, 973748), (160, 486874), (320, 243437)]