28686515

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{757}}^1$

素因数の和:839

約数の個数: 32

約数和(自身を含む): 41259456

約数和(自身を除く): 12572941

約数列:

[1, 5, 11, 13, 53, 55, 65, 143, 265, 583, 689, 715, 757, 2915, 3445, 3785, 7579, 8327, 9841, 37895, 40121, 41635, 49205, 108251, 200605, 441331, 521573, 541255, 2206655, 2607865, 5737303, 28686515]

約数ペア:

[(1, 28686515), (5, 5737303), (11, 2607865), (13, 2206655), (53, 541255), (55, 521573), (65, 441331), (143, 200605), (265, 108251), (583, 49205), (689, 41635), (715, 40121), (757, 37895), (2915, 9841), (3445, 8327), (3785, 7579)]