1320426505

素因数分解:

$5^1\times {\mathrm{353}}^1\times {\mathrm{421}}^1\times {\mathrm{1777}}^1$

素因数の和:2556

約数の個数: 16

約数和(自身を含む): 1593671184

約数和(自身を除く): 273244679

約数列:

[1, 5, 353, 421, 1765, 1777, 2105, 8885, 148613, 627281, 743065, 748117, 3136405, 3740585, 264085301, 1320426505]

約数ペア:

[(1, 1320426505), (5, 264085301), (353, 3740585), (421, 3136405), (1765, 748117), (1777, 743065), (2105, 627281), (8885, 148613)]