19810070

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{283001}}^1$

素因数の和:283015

約数の個数: 16

約数和(自身を含む): 40752288

約数和(自身を除く): 20942218

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 283001, 566002, 1415005, 1981007, 2830010, 3962014, 9905035, 19810070]

約数ペア:

[(1, 19810070), (2, 9905035), (5, 3962014), (7, 2830010), (10, 1981007), (14, 1415005), (35, 566002), (70, 283001)]