20841220

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{45307}}^1$

素因数の和:45339

約数の個数: 24

約数和(自身を含む): 45670464

約数和(自身を除く): 24829244

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 460, 45307, 90614, 181228, 226535, 453070, 906140, 1042061, 2084122, 4168244, 5210305, 10420610, 20841220]

約数ペア:

[(1, 20841220), (2, 10420610), (4, 5210305), (5, 4168244), (10, 2084122), (20, 1042061), (23, 906140), (46, 453070), (92, 226535), (115, 181228), (230, 90614), (460, 45307)]