67158820

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{81901}}^1$

素因数の和:81951

約数の個数: 24

約数和(自身を含む): 144475128

約数和(自身を除く): 77316308

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 81901, 163802, 327604, 409505, 819010, 1638020, 3357941, 6715882, 13431764, 16789705, 33579410, 67158820]

約数ペア:

[(1, 67158820), (2, 33579410), (4, 16789705), (5, 13431764), (10, 6715882), (20, 3357941), (41, 1638020), (82, 819010), (164, 409505), (205, 327604), (410, 163802), (820, 81901)]