51981215

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{72701}}^1$

素因数の和:72730

約数の個数: 16

約数和(自身を含む): 73283616

約数和(自身を除く): 21302401

約数列:

[1, 5, 11, 13, 55, 65, 143, 715, 72701, 363505, 799711, 945113, 3998555, 4725565, 10396243, 51981215]

約数ペア:

[(1, 51981215), (5, 10396243), (11, 4725565), (13, 3998555), (55, 945113), (65, 799711), (143, 363505), (715, 72701)]