20615270

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{347}}^1\times {\mathrm{457}}^1$

素因数の和:824

約数の個数: 32

約数和(自身を含む): 40164768

約数和(自身を除く): 19549498

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 347, 457, 694, 914, 1735, 2285, 3470, 4511, 4570, 5941, 9022, 11882, 22555, 29705, 45110, 59410, 158579, 317158, 792895, 1585790, 2061527, 4123054, 10307635, 20615270]

約数ペア:

[(1, 20615270), (2, 10307635), (5, 4123054), (10, 2061527), (13, 1585790), (26, 792895), (65, 317158), (130, 158579), (347, 59410), (457, 45110), (694, 29705), (914, 22555), (1735, 11882), (2285, 9022), (3470, 5941), (4511, 4570)]