28159815

素因数分解:

$3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{59}}^1\times {\mathrm{677}}^1$

素因数の和:791

約数の個数: 32

約数和(自身を含む): 46863360

約数和(自身を除く): 18703545

約数列:

[1, 3, 5, 15, 47, 59, 141, 177, 235, 295, 677, 705, 885, 2031, 2773, 3385, 8319, 10155, 13865, 31819, 39943, 41595, 95457, 119829, 159095, 199715, 477285, 599145, 1877321, 5631963, 9386605, 28159815]

約数ペア:

[(1, 28159815), (3, 9386605), (5, 5631963), (15, 1877321), (47, 599145), (59, 477285), (141, 199715), (177, 159095), (235, 119829), (295, 95457), (677, 41595), (705, 39943), (885, 31819), (2031, 13865), (2773, 10155), (3385, 8319)]