68664560

素因数分解:

$2^4\times 5^1\times {\mathrm{858307}}^1$

素因数の和:858320

約数の個数: 20

約数和(自身を含む): 159645288

約数和(自身を除く): 90980728

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 858307, 1716614, 3433228, 4291535, 6866456, 8583070, 13732912, 17166140, 34332280, 68664560]

約数ペア:

[(1, 68664560), (2, 34332280), (4, 17166140), (5, 13732912), (8, 8583070), (10, 6866456), (16, 4291535), (20, 3433228), (40, 1716614), (80, 858307)]