81170012168

素因数分解:

$2^3\times 7^1\times {\mathrm{71}}^1\times {\mathrm{20414993}}^1$

素因数の和:20415077

約数の個数: 32

約数和(自身を含む): 176385548160

約数和(自身を除く): 95215535992

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 71, 142, 284, 497, 568, 994, 1988, 3976, 20414993, 40829986, 81659972, 142904951, 163319944, 285809902, 571619804, 1143239608, 1449464503, 2898929006, 5797858012, 10146251521, 11595716024, 20292503042, 40585006084, 81170012168]

約数ペア:

[(1, 81170012168), (2, 40585006084), (4, 20292503042), (7, 11595716024), (8, 10146251521), (14, 5797858012), (28, 2898929006), (56, 1449464503), (71, 1143239608), (142, 571619804), (284, 285809902), (497, 163319944), (568, 142904951), (994, 81659972), (1988, 40829986), (3976, 20414993)]