9909040

素因数分解:

$2^4\times 5^1\times {\mathrm{123863}}^1$

素因数の和:123876

約数の個数: 20

約数和(自身を含む): 23038704

約数和(自身を除く): 13129664

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 123863, 247726, 495452, 619315, 990904, 1238630, 1981808, 2477260, 4954520, 9909040]

約数ペア:

[(1, 9909040), (2, 4954520), (4, 2477260), (5, 1981808), (8, 1238630), (10, 990904), (16, 619315), (20, 495452), (40, 247726), (80, 123863)]