19942034180

素因数分解:

$2^2\times 5^1\times {\mathrm{997101709}}^1$

素因数の和:997101718

約数の個数: 12

約数和(自身を含む): 41878271820

約数和(自身を除く): 21936237640

約数列:

[1, 2, 4, 5, 10, 20, 997101709, 1994203418, 3988406836, 4985508545, 9971017090, 19942034180]

約数ペア:

[(1, 19942034180), (2, 9971017090), (4, 4985508545), (5, 3988406836), (10, 1994203418), (20, 997101709)]