81704420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{583603}}^1$

素因数の和:583619

約数の個数: 24

約数和(自身を含む): 196090944

約数和(自身を除く): 114386524

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 583603, 1167206, 2334412, 2918015, 4085221, 5836030, 8170442, 11672060, 16340884, 20426105, 40852210, 81704420]

約数ペア:

[(1, 81704420), (2, 40852210), (4, 20426105), (5, 16340884), (7, 11672060), (10, 8170442), (14, 5836030), (20, 4085221), (28, 2918015), (35, 2334412), (70, 1167206), (140, 583603)]