66608560

素因数分解:

$2^4\times 5^1\times {\mathrm{832607}}^1$

素因数の和:832620

約数の個数: 20

約数和(自身を含む): 154865088

約数和(自身を除く): 88256528

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 832607, 1665214, 3330428, 4163035, 6660856, 8326070, 13321712, 16652140, 33304280, 66608560]

約数ペア:

[(1, 66608560), (2, 33304280), (4, 16652140), (5, 13321712), (8, 8326070), (10, 6660856), (16, 4163035), (20, 3330428), (40, 1665214), (80, 832607)]