20880536

素因数分解:

$2^3\times {\mathrm{503}}^1\times {\mathrm{5189}}^1$

素因数の和:5698

約数の個数: 16

約数和(自身を含む): 39236400

約数和(自身を除く): 18355864

約数列:

[1, 2, 4, 8, 503, 1006, 2012, 4024, 5189, 10378, 20756, 41512, 2610067, 5220134, 10440268, 20880536]

約数ペア:

[(1, 20880536), (2, 10440268), (4, 5220134), (8, 2610067), (503, 41512), (1006, 20756), (2012, 10378), (4024, 5189)]