64940765

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{509}}^1$

素因数の和:629

約数の個数: 32

約数和(自身を含む): 88128000

約数和(自身を除く): 23187235

約数列:

[1, 5, 17, 19, 79, 85, 95, 323, 395, 509, 1343, 1501, 1615, 2545, 6715, 7505, 8653, 9671, 25517, 40211, 43265, 48355, 127585, 164407, 201055, 683587, 764009, 822035, 3417935, 3820045, 12988153, 64940765]

約数ペア:

[(1, 64940765), (5, 12988153), (17, 3820045), (19, 3417935), (79, 822035), (85, 764009), (95, 683587), (323, 201055), (395, 164407), (509, 127585), (1343, 48355), (1501, 43265), (1615, 40211), (2545, 25517), (6715, 9671), (7505, 8653)]