20874340

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^2\times {\mathrm{1973}}^1$

素因数の和:2028

約数の個数: 36

約数和(自身を含む): 45848124

約数和(自身を除く): 24973784

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 460, 529, 1058, 1973, 2116, 2645, 3946, 5290, 7892, 9865, 10580, 19730, 39460, 45379, 90758, 181516, 226895, 453790, 907580, 1043717, 2087434, 4174868, 5218585, 10437170, 20874340]

約数ペア:

[(1, 20874340), (2, 10437170), (4, 5218585), (5, 4174868), (10, 2087434), (20, 1043717), (23, 907580), (46, 453790), (92, 226895), (115, 181516), (230, 90758), (460, 45379), (529, 39460), (1058, 19730), (1973, 10580), (2116, 9865), (2645, 7892), (3946, 5290)]