20110981105

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{28031}}^1$

素因数の和:28197

約数の個数: 32

約数和(自身を含む): 25575948288

約数和(自身を除く): 5464967183

約数列:

[1, 5, 43, 47, 71, 215, 235, 355, 2021, 3053, 3337, 10105, 15265, 16685, 28031, 140155, 143491, 717455, 1205333, 1317457, 1990201, 6026665, 6587285, 9951005, 56650651, 85578643, 93539447, 283253255, 427893215, 467697235, 4022196221, 20110981105]

約数ペア:

[(1, 20110981105), (5, 4022196221), (43, 467697235), (47, 427893215), (71, 283253255), (215, 93539447), (235, 85578643), (355, 56650651), (2021, 9951005), (3053, 6587285), (3337, 6026665), (10105, 1990201), (15265, 1317457), (16685, 1205333), (28031, 717455), (140155, 143491)]