79764400

素因数分解:

$2^4\times 5^2\times {\mathrm{199411}}^1$

素因数の和:199429

約数の個数: 30

約数和(自身を含む): 191634932

約数和(自身を除く): 111870532

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 199411, 398822, 797644, 997055, 1595288, 1994110, 3190576, 3988220, 4985275, 7976440, 9970550, 15952880, 19941100, 39882200, 79764400]

約数ペア:

[(1, 79764400), (2, 39882200), (4, 19941100), (5, 15952880), (8, 9970550), (10, 7976440), (16, 4985275), (20, 3988220), (25, 3190576), (40, 1994110), (50, 1595288), (80, 997055), (100, 797644), (200, 398822), (400, 199411)]