19945888

素因数分解:

$2^5\times {\mathrm{71}}^1\times {\mathrm{8779}}^1$

素因数の和:8860

約数の個数: 24

約数和(自身を含む): 39826080

約数和(自身を除く): 19880192

約数列:

[1, 2, 4, 8, 16, 32, 71, 142, 284, 568, 1136, 2272, 8779, 17558, 35116, 70232, 140464, 280928, 623309, 1246618, 2493236, 4986472, 9972944, 19945888]

約数ペア:

[(1, 19945888), (2, 9972944), (4, 4986472), (8, 2493236), (16, 1246618), (32, 623309), (71, 280928), (142, 140464), (284, 70232), (568, 35116), (1136, 17558), (2272, 8779)]