20008420

素因数分解:

$2^2\times 5^1\times {\mathrm{907}}^1\times {\mathrm{1103}}^1$

素因数の和:2019

約数の個数: 24

約数和(自身を含む): 42102144

約数和(自身を除く): 22093724

約数列:

[1, 2, 4, 5, 10, 20, 907, 1103, 1814, 2206, 3628, 4412, 4535, 5515, 9070, 11030, 18140, 22060, 1000421, 2000842, 4001684, 5002105, 10004210, 20008420]

約数ペア:

[(1, 20008420), (2, 10004210), (4, 5002105), (5, 4001684), (10, 2000842), (20, 1000421), (907, 22060), (1103, 18140), (1814, 11030), (2206, 9070), (3628, 5515), (4412, 4535)]