9780129212

素因数分解:

$2^2\times 7^1\times {\mathrm{349290329}}^1$

素因数の和:349290340

約数の個数: 12

約数和(自身を含む): 19560258480

約数和(自身を除く): 9780129268

約数列:

[1, 2, 4, 7, 14, 28, 349290329, 698580658, 1397161316, 2445032303, 4890064606, 9780129212]

約数ペア:

[(1, 9780129212), (2, 4890064606), (4, 2445032303), (7, 1397161316), (14, 698580658), (28, 349290329)]