208728825

素因数分解:

$3^1\times 5^2\times {\mathrm{173}}^1\times {\mathrm{16087}}^1$

素因数の和:16273

約数の個数: 24

約数和(自身を含む): 347114688

約数和(自身を除く): 138385863

約数列:

[1, 3, 5, 15, 25, 75, 173, 519, 865, 2595, 4325, 12975, 16087, 48261, 80435, 241305, 402175, 1206525, 2783051, 8349153, 13915255, 41745765, 69576275, 208728825]

約数ペア:

[(1, 208728825), (3, 69576275), (5, 41745765), (15, 13915255), (25, 8349153), (75, 2783051), (173, 1206525), (519, 402175), (865, 241305), (2595, 80435), (4325, 48261), (12975, 16087)]