128142015

素因数分解:

$3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{139}}^1\times {\mathrm{1499}}^1$

素因数の和:1687

約数の個数: 32

約数和(自身を含む): 211680000

約数和(自身を除く): 83537985

約数列:

[1, 3, 5, 15, 41, 123, 139, 205, 417, 615, 695, 1499, 2085, 4497, 5699, 7495, 17097, 22485, 28495, 61459, 85485, 184377, 208361, 307295, 625083, 921885, 1041805, 3125415, 8542801, 25628403, 42714005, 128142015]

約数ペア:

[(1, 128142015), (3, 42714005), (5, 25628403), (15, 8542801), (41, 3125415), (123, 1041805), (139, 921885), (205, 625083), (417, 307295), (615, 208361), (695, 184377), (1499, 85485), (2085, 61459), (4497, 28495), (5699, 22485), (7495, 17097)]