66580340

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{77419}}^1$

素因数の和:77471

約数の個数: 24

約数和(自身を含む): 143072160

約数和(自身を除く): 76491820

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 77419, 154838, 309676, 387095, 774190, 1548380, 3329017, 6658034, 13316068, 16645085, 33290170, 66580340]

約数ペア:

[(1, 66580340), (2, 33290170), (4, 16645085), (5, 13316068), (10, 6658034), (20, 3329017), (43, 1548380), (86, 774190), (172, 387095), (215, 309676), (430, 154838), (860, 77419)]