20079865

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{229}}^1$

素因数の和:337

約数の個数: 32

約数和(自身を含む): 27820800

約数和(自身を除く): 7740935

約数列:

[1, 5, 13, 19, 65, 71, 95, 229, 247, 355, 923, 1145, 1235, 1349, 2977, 4351, 4615, 6745, 14885, 16259, 17537, 21755, 56563, 81295, 87685, 211367, 282815, 308921, 1056835, 1544605, 4015973, 20079865]

約数ペア:

[(1, 20079865), (5, 4015973), (13, 1544605), (19, 1056835), (65, 308921), (71, 282815), (95, 211367), (229, 87685), (247, 81295), (355, 56563), (923, 21755), (1145, 17537), (1235, 16259), (1349, 14885), (2977, 6745), (4351, 4615)]