28120285

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{59}}^1\times {\mathrm{173}}^1$

素因数の和:285

約数の個数: 32

約数和(自身を含む): 37584000

約数和(自身を除く): 9463715

約数列:

[1, 5, 19, 29, 59, 95, 145, 173, 295, 551, 865, 1121, 1711, 2755, 3287, 5017, 5605, 8555, 10207, 16435, 25085, 32509, 51035, 95323, 162545, 193933, 296003, 476615, 969665, 1480015, 5624057, 28120285]

約数ペア:

[(1, 28120285), (5, 5624057), (19, 1480015), (29, 969665), (59, 476615), (95, 296003), (145, 193933), (173, 162545), (295, 95323), (551, 51035), (865, 32509), (1121, 25085), (1711, 16435), (2755, 10207), (3287, 8555), (5017, 5605)]