2019980835

素因数分解:

$3^4\times 5^1\times {\mathrm{4987607}}^1$

素因数の和:4987624

約数の個数: 20

約数和(自身を含む): 3621003408

約数和(自身を除く): 1601022573

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 4987607, 14962821, 24938035, 44888463, 74814105, 134665389, 224442315, 403996167, 673326945, 2019980835]

約数ペア:

[(1, 2019980835), (3, 673326945), (5, 403996167), (9, 224442315), (15, 134665389), (27, 74814105), (45, 44888463), (81, 24938035), (135, 14962821), (405, 4987607)]