196400

素因数分解:

$2^4\times 5^2\times {\mathrm{491}}^1$

素因数の和:509

約数の個数: 30

約数和(自身を含む): 472812

約数和(自身を除く): 276412

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 491, 982, 1964, 2455, 3928, 4910, 7856, 9820, 12275, 19640, 24550, 39280, 49100, 98200, 196400]

約数ペア:

[(1, 196400), (2, 98200), (4, 49100), (5, 39280), (8, 24550), (10, 19640), (16, 12275), (20, 9820), (25, 7856), (40, 4910), (50, 3928), (80, 2455), (100, 1964), (200, 982), (400, 491)]