20877580

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{54941}}^1$

素因数の和:54969

約数の個数: 24

約数和(自身を含む): 46151280

約数和(自身を除く): 25273700

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 54941, 109882, 219764, 274705, 549410, 1043879, 1098820, 2087758, 4175516, 5219395, 10438790, 20877580]

約数ペア:

[(1, 20877580), (2, 10438790), (4, 5219395), (5, 4175516), (10, 2087758), (19, 1098820), (20, 1043879), (38, 549410), (76, 274705), (95, 219764), (190, 109882), (380, 54941)]