87840940

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{399277}}^1$

素因数の和:399297

約数の個数: 24

約数和(自身を含む): 201236112

約数和(自身を除く): 113395172

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 399277, 798554, 1597108, 1996385, 3992770, 4392047, 7985540, 8784094, 17568188, 21960235, 43920470, 87840940]

約数ペア:

[(1, 87840940), (2, 43920470), (4, 21960235), (5, 17568188), (10, 8784094), (11, 7985540), (20, 4392047), (22, 3992770), (44, 1996385), (55, 1597108), (110, 798554), (220, 399277)]