13680875

素因数分解:

$5^3\times {\mathrm{13}}^1\times {\mathrm{8419}}^1$

素因数の和:8447

約数の個数: 16

約数和(自身を含む): 18389280

約数和(自身を除く): 4708405

約数列:

[1, 5, 13, 25, 65, 125, 325, 1625, 8419, 42095, 109447, 210475, 547235, 1052375, 2736175, 13680875]

約数ペア:

[(1, 13680875), (5, 2736175), (13, 1052375), (25, 547235), (65, 210475), (125, 109447), (325, 42095), (1625, 8419)]