65440010

素因数分解:

$2^1\times 5^1\times {\mathrm{809}}^1\times {\mathrm{8089}}^1$

素因数の和:8905

約数の個数: 16

約数和(自身を含む): 117952200

約数和(自身を除く): 52512190

約数列:

[1, 2, 5, 10, 809, 1618, 4045, 8089, 8090, 16178, 40445, 80890, 6544001, 13088002, 32720005, 65440010]

約数ペア:

[(1, 65440010), (2, 32720005), (5, 13088002), (10, 6544001), (809, 80890), (1618, 40445), (4045, 16178), (8089, 8090)]