28178145

素因数分解:

$3^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{4441}}^1$

素因数の和:4502

約数の個数: 32

約数和(自身を含む): 51171840

約数和(自身を除く): 22993695

約数列:

[1, 3, 5, 9, 15, 27, 45, 47, 135, 141, 235, 423, 705, 1269, 2115, 4441, 6345, 13323, 22205, 39969, 66615, 119907, 199845, 208727, 599535, 626181, 1043635, 1878543, 3130905, 5635629, 9392715, 28178145]

約数ペア:

[(1, 28178145), (3, 9392715), (5, 5635629), (9, 3130905), (15, 1878543), (27, 1043635), (45, 626181), (47, 599535), (135, 208727), (141, 199845), (235, 119907), (423, 66615), (705, 39969), (1269, 22205), (2115, 13323), (4441, 6345)]