20158892

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{2789}}^1$

素因数の和:2945

約数の個数: 24

約数和(自身を含む): 38278800

約数和(自身を除く): 18119908

約数列:

[1, 2, 4, 13, 26, 52, 139, 278, 556, 1807, 2789, 3614, 5578, 7228, 11156, 36257, 72514, 145028, 387671, 775342, 1550684, 5039723, 10079446, 20158892]

約数ペア:

[(1, 20158892), (2, 10079446), (4, 5039723), (13, 1550684), (26, 775342), (52, 387671), (139, 145028), (278, 72514), (556, 36257), (1807, 11156), (2789, 7228), (3614, 5578)]