128256972

素因数分解:

$2^2\times 3^1\times {\mathrm{499}}^1\times {\mathrm{21419}}^1$

素因数の和:21925

約数の個数: 24

約数和(自身を含む): 299880000

約数和(自身を除く): 171623028

約数列:

[1, 2, 3, 4, 6, 12, 499, 998, 1497, 1996, 2994, 5988, 21419, 42838, 64257, 85676, 128514, 257028, 10688081, 21376162, 32064243, 42752324, 64128486, 128256972]

約数ペア:

[(1, 128256972), (2, 64128486), (3, 42752324), (4, 32064243), (6, 21376162), (12, 10688081), (499, 257028), (998, 128514), (1497, 85676), (1996, 64257), (2994, 42838), (5988, 21419)]