201020912

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{661253}}^1$

素因数の和:661280

約数の個数: 20

約数和(自身を含む): 409977480

約数和(自身を除く): 208956568

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 661253, 1322506, 2645012, 5290024, 10580048, 12563807, 25127614, 50255228, 100510456, 201020912]

約数ペア:

[(1, 201020912), (2, 100510456), (4, 50255228), (8, 25127614), (16, 12563807), (19, 10580048), (38, 5290024), (76, 2645012), (152, 1322506), (304, 661253)]