40420

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1$

素因数の和:99

約数の個数: 24

約数和(自身を含む): 88704

約数和(自身を除く): 48284

約数列:

[1, 2, 4, 5, 10, 20, 43, 47, 86, 94, 172, 188, 215, 235, 430, 470, 860, 940, 2021, 4042, 8084, 10105, 20210, 40420]

約数ペア:

[(1, 40420), (2, 20210), (4, 10105), (5, 8084), (10, 4042), (20, 2021), (43, 940), (47, 860), (86, 470), (94, 430), (172, 235), (188, 215)]