137920005

素因数分解:

$3^2\times 5^1\times {\mathrm{163}}^1\times {\mathrm{18803}}^1$

素因数の和:18977

約数の個数: 24

約数和(自身を含む): 240540768

約数和(自身を除く): 102620763

約数列:

[1, 3, 5, 9, 15, 45, 163, 489, 815, 1467, 2445, 7335, 18803, 56409, 94015, 169227, 282045, 846135, 3064889, 9194667, 15324445, 27584001, 45973335, 137920005]

約数ペア:

[(1, 137920005), (3, 45973335), (5, 27584001), (9, 15324445), (15, 9194667), (45, 3064889), (163, 846135), (489, 282045), (815, 169227), (1467, 94015), (2445, 56409), (7335, 18803)]