18687140

素因数分解:

$2^2\times 5^1\times {\mathrm{241}}^1\times {\mathrm{3877}}^1$

素因数の和:4127

約数の個数: 24

約数和(自身を含む): 39415992

約数和(自身を除く): 20728852

約数列:

[1, 2, 4, 5, 10, 20, 241, 482, 964, 1205, 2410, 3877, 4820, 7754, 15508, 19385, 38770, 77540, 934357, 1868714, 3737428, 4671785, 9343570, 18687140]

約数ペア:

[(1, 18687140), (2, 9343570), (4, 4671785), (5, 3737428), (10, 1868714), (20, 934357), (241, 77540), (482, 38770), (964, 19385), (1205, 15508), (2410, 7754), (3877, 4820)]