64021285

素因数分解:

$5^1\times {\mathrm{37}}^2\times {\mathrm{47}}^1\times {\mathrm{199}}^1$

素因数の和:325

約数の個数: 24

約数和(自身を含む): 81043200

約数和(自身を除く): 17021915

約数列:

[1, 5, 37, 47, 185, 199, 235, 995, 1369, 1739, 6845, 7363, 8695, 9353, 36815, 46765, 64343, 272431, 321715, 346061, 1362155, 1730305, 12804257, 64021285]

約数ペア:

[(1, 64021285), (5, 12804257), (37, 1730305), (47, 1362155), (185, 346061), (199, 321715), (235, 272431), (995, 64343), (1369, 46765), (1739, 36815), (6845, 9353), (7363, 8695)]