20100642520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{71788009}}^1$

素因数の和:71788027

約数の個数: 32

約数和(自身を含む): 51687367200

約数和(自身を除く): 31586724680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 71788009, 143576018, 287152036, 358940045, 502516063, 574304072, 717880090, 1005032126, 1435760180, 2010064252, 2512580315, 2871520360, 4020128504, 5025160630, 10050321260, 20100642520]

約数ペア:

[(1, 20100642520), (2, 10050321260), (4, 5025160630), (5, 4020128504), (7, 2871520360), (8, 2512580315), (10, 2010064252), (14, 1435760180), (20, 1005032126), (28, 717880090), (35, 574304072), (40, 502516063), (56, 358940045), (70, 287152036), (140, 143576018), (280, 71788009)]