78515780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{560827}}^1$

素因数の和:560843

約数の個数: 24

約数和(自身を含む): 188438208

約数和(自身を除く): 109922428

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 560827, 1121654, 2243308, 2804135, 3925789, 5608270, 7851578, 11216540, 15703156, 19628945, 39257890, 78515780]

約数ペア:

[(1, 78515780), (2, 39257890), (4, 19628945), (5, 15703156), (7, 11216540), (10, 7851578), (14, 5608270), (20, 3925789), (28, 2804135), (35, 2243308), (70, 1121654), (140, 560827)]