209950775

素因数分解:

$5^2\times {\mathrm{2029}}^1\times {\mathrm{4139}}^1$

素因数の和:6178

約数の個数: 12

約数和(自身を含む): 260530200

約数和(自身を除く): 50579425

約数列:

[1, 5, 25, 2029, 4139, 10145, 20695, 50725, 103475, 8398031, 41990155, 209950775]

約数ペア:

[(1, 209950775), (5, 41990155), (25, 8398031), (2029, 103475), (4139, 50725), (10145, 20695)]