12961540

素因数分解:

$2^2\times 5^1\times {\mathrm{307}}^1\times {\mathrm{2111}}^1$

素因数の和:2427

約数の個数: 24

約数和(自身を含む): 27320832

約数和(自身を除く): 14359292

約数列:

[1, 2, 4, 5, 10, 20, 307, 614, 1228, 1535, 2111, 3070, 4222, 6140, 8444, 10555, 21110, 42220, 648077, 1296154, 2592308, 3240385, 6480770, 12961540]

約数ペア:

[(1, 12961540), (2, 6480770), (4, 3240385), (5, 2592308), (10, 1296154), (20, 648077), (307, 42220), (614, 21110), (1228, 10555), (1535, 8444), (2111, 6140), (3070, 4222)]