129748780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{926777}}^1$

素因数の和:926793

約数の個数: 24

約数和(自身を含む): 311397408

約数和(自身を除く): 181648628

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 926777, 1853554, 3707108, 4633885, 6487439, 9267770, 12974878, 18535540, 25949756, 32437195, 64874390, 129748780]

約数ペア:

[(1, 129748780), (2, 64874390), (4, 32437195), (5, 25949756), (7, 18535540), (10, 12974878), (14, 9267770), (20, 6487439), (28, 4633885), (35, 3707108), (70, 1853554), (140, 926777)]