66950540

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{81647}}^1$

素因数の和:81697

約数の個数: 24

約数和(自身を含む): 144027072

約数和(自身を除く): 77076532

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 81647, 163294, 326588, 408235, 816470, 1632940, 3347527, 6695054, 13390108, 16737635, 33475270, 66950540]

約数ペア:

[(1, 66950540), (2, 33475270), (4, 16737635), (5, 13390108), (10, 6695054), (20, 3347527), (41, 1632940), (82, 816470), (164, 408235), (205, 326588), (410, 163294), (820, 81647)]