12782140

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{13043}}^1$

素因数の和:13066

約数の個数: 36

約数和(自身を含む): 31227336

約数和(自身を除く): 18445196

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 13043, 26086, 52172, 65215, 91301, 130430, 182602, 260860, 365204, 456505, 639107, 913010, 1278214, 1826020, 2556428, 3195535, 6391070, 12782140]

約数ペア:

[(1, 12782140), (2, 6391070), (4, 3195535), (5, 2556428), (7, 1826020), (10, 1278214), (14, 913010), (20, 639107), (28, 456505), (35, 365204), (49, 260860), (70, 182602), (98, 130430), (140, 91301), (196, 65215), (245, 52172), (490, 26086), (980, 13043)]