12840695

素因数分解:

$5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{3083}}^1$

素因数の和:3119

約数の個数: 24

約数和(自身を含む): 18985104

約数和(自身を除く): 6144409

約数列:

[1, 5, 7, 17, 35, 49, 85, 119, 245, 595, 833, 3083, 4165, 15415, 21581, 52411, 107905, 151067, 262055, 366877, 755335, 1834385, 2568139, 12840695]

約数ペア:

[(1, 12840695), (5, 2568139), (7, 1834385), (17, 755335), (35, 366877), (49, 262055), (85, 151067), (119, 107905), (245, 52411), (595, 21581), (833, 15415), (3083, 4165)]