13120400

素因数分解:

$2^4\times 5^2\times {\mathrm{32801}}^1$

素因数の和:32819

約数の個数: 30

約数和(自身を含む): 31522722

約数和(自身を除く): 18402322

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 32801, 65602, 131204, 164005, 262408, 328010, 524816, 656020, 820025, 1312040, 1640050, 2624080, 3280100, 6560200, 13120400]

約数ペア:

[(1, 13120400), (2, 6560200), (4, 3280100), (5, 2624080), (8, 1640050), (10, 1312040), (16, 820025), (20, 656020), (25, 524816), (40, 328010), (50, 262408), (80, 164005), (100, 131204), (200, 65602), (400, 32801)]