18662840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{66653}}^1$

素因数の和:66671

約数の個数: 32

約数和(自身を含む): 47990880

約数和(自身を除く): 29328040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 66653, 133306, 266612, 333265, 466571, 533224, 666530, 933142, 1333060, 1866284, 2332855, 2666120, 3732568, 4665710, 9331420, 18662840]

約数ペア:

[(1, 18662840), (2, 9331420), (4, 4665710), (5, 3732568), (7, 2666120), (8, 2332855), (10, 1866284), (14, 1333060), (20, 933142), (28, 666530), (35, 533224), (40, 466571), (56, 333265), (70, 266612), (140, 133306), (280, 66653)]