12920854085

素因数分解:

$5^1\times {\mathrm{79}}^1\times {\mathrm{199}}^1\times {\mathrm{164377}}^1$

素因数の和:164660

約数の個数: 16

約数和(自身を含む): 15780288000

約数和(自身を除く): 2859433915

約数列:

[1, 5, 79, 199, 395, 995, 15721, 78605, 164377, 821885, 12985783, 32711023, 64928915, 163555115, 2584170817, 12920854085]

約数ペア:

[(1, 12920854085), (5, 2584170817), (79, 163555115), (199, 64928915), (395, 32711023), (995, 12985783), (15721, 821885), (78605, 164377)]