20189701855

素因数分解:

$5^1\times {\mathrm{31}}^2\times {\mathrm{4201811}}^1$

素因数の和:4201878

約数の個数: 12

約数和(自身を含む): 25034395896

約数和(自身を除く): 4844694041

約数列:

[1, 5, 31, 155, 961, 4805, 4201811, 21009055, 130256141, 651280705, 4037940371, 20189701855]

約数ペア:

[(1, 20189701855), (5, 4037940371), (31, 651280705), (155, 130256141), (961, 21009055), (4805, 4201811)]