78021200

素因数分解:

$2^4\times 5^2\times {\mathrm{195053}}^1$

素因数の和:195071

約数の個数: 30

約数和(自身を含む): 187446894

約数和(自身を除く): 109425694

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 195053, 390106, 780212, 975265, 1560424, 1950530, 3120848, 3901060, 4876325, 7802120, 9752650, 15604240, 19505300, 39010600, 78021200]

約数ペア:

[(1, 78021200), (2, 39010600), (4, 19505300), (5, 15604240), (8, 9752650), (10, 7802120), (16, 4876325), (20, 3901060), (25, 3120848), (40, 1950530), (50, 1560424), (80, 975265), (100, 780212), (200, 390106), (400, 195053)]