20431742980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{8442869}}^1$

素因数の和:8442900

約数の個数: 36

約数和(自身を含む): 47161871820

約数和(自身を除く): 26730128840

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 220, 242, 484, 605, 1210, 2420, 8442869, 16885738, 33771476, 42214345, 84428690, 92871559, 168857380, 185743118, 371486236, 464357795, 928715590, 1021587149, 1857431180, 2043174298, 4086348596, 5107935745, 10215871490, 20431742980]

約数ペア:

[(1, 20431742980), (2, 10215871490), (4, 5107935745), (5, 4086348596), (10, 2043174298), (11, 1857431180), (20, 1021587149), (22, 928715590), (44, 464357795), (55, 371486236), (110, 185743118), (121, 168857380), (220, 92871559), (242, 84428690), (484, 42214345), (605, 33771476), (1210, 16885738), (2420, 8442869)]