28931540

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{131507}}^1$

素因数の和:131527

約数の個数: 24

約数和(自身を含む): 66280032

約数和(自身を除く): 37348492

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 131507, 263014, 526028, 657535, 1315070, 1446577, 2630140, 2893154, 5786308, 7232885, 14465770, 28931540]

約数ペア:

[(1, 28931540), (2, 14465770), (4, 7232885), (5, 5786308), (10, 2893154), (11, 2630140), (20, 1446577), (22, 1315070), (44, 657535), (55, 526028), (110, 263014), (220, 131507)]