20876420

素因数分解:

$2^2\times 5^1\times {\mathrm{353}}^1\times {\mathrm{2957}}^1$

素因数の和:3319

約数の個数: 24

約数和(自身を含む): 43979544

約数和(自身を除く): 23103124

約数列:

[1, 2, 4, 5, 10, 20, 353, 706, 1412, 1765, 2957, 3530, 5914, 7060, 11828, 14785, 29570, 59140, 1043821, 2087642, 4175284, 5219105, 10438210, 20876420]

約数ペア:

[(1, 20876420), (2, 10438210), (4, 5219105), (5, 4175284), (10, 2087642), (20, 1043821), (353, 59140), (706, 29570), (1412, 14785), (1765, 11828), (2957, 7060), (3530, 5914)]