2051280045

素因数分解:

$3^4\times 5^1\times {\mathrm{5064889}}^1$

素因数の和:5064906

約数の個数: 20

約数和(自身を含む): 3677110140

約数和(自身を除く): 1625830095

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 5064889, 15194667, 25324445, 45584001, 75973335, 136752003, 227920005, 410256009, 683760015, 2051280045]

約数ペア:

[(1, 2051280045), (3, 683760015), (5, 410256009), (9, 227920005), (15, 136752003), (27, 75973335), (45, 45584001), (81, 25324445), (135, 15194667), (405, 5064889)]