388941140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{2778151}}^1$

素因数の和:2778167

約数の個数: 24

約数和(自身を含む): 933459072

約数和(自身を除く): 544517932

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 2778151, 5556302, 11112604, 13890755, 19447057, 27781510, 38894114, 55563020, 77788228, 97235285, 194470570, 388941140]

約数ペア:

[(1, 388941140), (2, 194470570), (4, 97235285), (5, 77788228), (7, 55563020), (10, 38894114), (14, 27781510), (20, 19447057), (28, 13890755), (35, 11112604), (70, 5556302), (140, 2778151)]