19691420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{3271}}^1$

素因数の和:3330

約数の個数: 48

約数和(自身を含む): 48373248

約数和(自身を除く): 28681828

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 43, 70, 86, 140, 172, 215, 301, 430, 602, 860, 1204, 1505, 3010, 3271, 6020, 6542, 13084, 16355, 22897, 32710, 45794, 65420, 91588, 114485, 140653, 228970, 281306, 457940, 562612, 703265, 984571, 1406530, 1969142, 2813060, 3938284, 4922855, 9845710, 19691420]

約数ペア:

[(1, 19691420), (2, 9845710), (4, 4922855), (5, 3938284), (7, 2813060), (10, 1969142), (14, 1406530), (20, 984571), (28, 703265), (35, 562612), (43, 457940), (70, 281306), (86, 228970), (140, 140653), (172, 114485), (215, 91588), (301, 65420), (430, 45794), (602, 32710), (860, 22897), (1204, 16355), (1505, 13084), (3010, 6542), (3271, 6020)]