20120045

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{9887}}^1$

素因数の和:9940

約数の個数: 16

約数和(自身を含む): 27053568

約数和(自身を除く): 6933523

約数列:

[1, 5, 11, 37, 55, 185, 407, 2035, 9887, 49435, 108757, 365819, 543785, 1829095, 4024009, 20120045]

約数ペア:

[(1, 20120045), (5, 4024009), (11, 1829095), (37, 543785), (55, 365819), (185, 108757), (407, 49435), (2035, 9887)]