28958715

素因数分解:

$3^4\times 5^1\times {\mathrm{71503}}^1$

素因数の和:71520

約数の個数: 20

約数和(自身を含む): 51911904

約数和(自身を除く): 22953189

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 71503, 214509, 357515, 643527, 1072545, 1930581, 3217635, 5791743, 9652905, 28958715]

約数ペア:

[(1, 28958715), (3, 9652905), (5, 5791743), (9, 3217635), (15, 1930581), (27, 1072545), (45, 643527), (81, 357515), (135, 214509), (405, 71503)]