20011853390

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{971921}}^1$

素因数の和:972028

約数の個数: 32

約数和(自身を含む): 37788327360

約数和(自身を除く): 17776473970

約数列:

[1, 2, 5, 10, 29, 58, 71, 142, 145, 290, 355, 710, 2059, 4118, 10295, 20590, 971921, 1943842, 4859605, 9719210, 28185709, 56371418, 69006391, 138012782, 140928545, 281857090, 345031955, 690063910, 2001185339, 4002370678, 10005926695, 20011853390]

約数ペア:

[(1, 20011853390), (2, 10005926695), (5, 4002370678), (10, 2001185339), (29, 690063910), (58, 345031955), (71, 281857090), (142, 140928545), (145, 138012782), (290, 69006391), (355, 56371418), (710, 28185709), (2059, 9719210), (4118, 4859605), (10295, 1943842), (20590, 971921)]