66778820

素因数分解:

$2^2\times 5^1\times {\mathrm{149}}^1\times {\mathrm{22409}}^1$

素因数の和:22567

約数の個数: 24

約数和(自身を含む): 141183000

約数和(自身を除く): 74404180

約数列:

[1, 2, 4, 5, 10, 20, 149, 298, 596, 745, 1490, 2980, 22409, 44818, 89636, 112045, 224090, 448180, 3338941, 6677882, 13355764, 16694705, 33389410, 66778820]

約数ペア:

[(1, 66778820), (2, 33389410), (4, 16694705), (5, 13355764), (10, 6677882), (20, 3338941), (149, 448180), (298, 224090), (596, 112045), (745, 89636), (1490, 44818), (2980, 22409)]