81540518

素因数分解:

$2^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{19801}}^1$

素因数の和:19903

約数の個数: 16

約数和(自身を含む): 128316960

約数和(自身を除く): 46776442

約数列:

[1, 2, 29, 58, 71, 142, 2059, 4118, 19801, 39602, 574229, 1148458, 1405871, 2811742, 40770259, 81540518]

約数ペア:

[(1, 81540518), (2, 40770259), (29, 2811742), (58, 1405871), (71, 1148458), (142, 574229), (2059, 39602), (4118, 19801)]