28900395

素因数分解:

$3^4\times 5^1\times {\mathrm{71359}}^1$

素因数の和:71376

約数の個数: 20

約数和(自身を含む): 51807360

約数和(自身を除く): 22906965

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 71359, 214077, 356795, 642231, 1070385, 1926693, 3211155, 5780079, 9633465, 28900395]

約数ペア:

[(1, 28900395), (3, 9633465), (5, 5780079), (9, 3211155), (15, 1926693), (27, 1070385), (45, 642231), (81, 356795), (135, 214077), (405, 71359)]