201997780

素因数分解:

$2^2\times 5^1\times {\mathrm{191}}^1\times {\mathrm{52879}}^1$

素因数の和:53079

約数の個数: 24

約数和(自身を含む): 426424320

約数和(自身を除く): 224426540

約数列:

[1, 2, 4, 5, 10, 20, 191, 382, 764, 955, 1910, 3820, 52879, 105758, 211516, 264395, 528790, 1057580, 10099889, 20199778, 40399556, 50499445, 100998890, 201997780]

約数ペア:

[(1, 201997780), (2, 100998890), (4, 50499445), (5, 40399556), (10, 20199778), (20, 10099889), (191, 1057580), (382, 528790), (764, 264395), (955, 211516), (1910, 105758), (3820, 52879)]