138824420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{991603}}^1$

素因数の和:991619

約数の個数: 24

約数和(自身を含む): 333178944

約数和(自身を除く): 194354524

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 991603, 1983206, 3966412, 4958015, 6941221, 9916030, 13882442, 19832060, 27764884, 34706105, 69412210, 138824420]

約数ペア:

[(1, 138824420), (2, 69412210), (4, 34706105), (5, 27764884), (7, 19832060), (10, 13882442), (14, 9916030), (20, 6941221), (28, 4958015), (35, 3966412), (70, 1983206), (140, 991603)]