28637145

素因数分解:

$3^4\times 5^1\times {\mathrm{70709}}^1$

素因数の和:70726

約数の個数: 20

約数和(自身を含む): 51335460

約数和(自身を除く): 22698315

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 70709, 212127, 353545, 636381, 1060635, 1909143, 3181905, 5727429, 9545715, 28637145]

約数ペア:

[(1, 28637145), (3, 9545715), (5, 5727429), (9, 3181905), (15, 1909143), (27, 1060635), (45, 636381), (81, 353545), (135, 212127), (405, 70709)]