15678320715

素因数分解:

$3^4\times 5^1\times {\mathrm{38711903}}^1$

素因数の和:38711920

約数の個数: 20

約数和(自身を含む): 28104842304

約数和(自身を除く): 12426521589

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 38711903, 116135709, 193559515, 348407127, 580678545, 1045221381, 1742035635, 3135664143, 5226106905, 15678320715]

約数ペア:

[(1, 15678320715), (3, 5226106905), (5, 3135664143), (9, 1742035635), (15, 1045221381), (27, 580678545), (45, 348407127), (81, 193559515), (135, 116135709), (405, 38711903)]