18663610

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{41}}^1\times {\mathrm{929}}^1$

素因数の和:991

約数の個数: 48

約数和(自身を含む): 40075560

約数和(自身を除く): 21411950

約数列:

[1, 2, 5, 7, 10, 14, 35, 41, 49, 70, 82, 98, 205, 245, 287, 410, 490, 574, 929, 1435, 1858, 2009, 2870, 4018, 4645, 6503, 9290, 10045, 13006, 20090, 32515, 38089, 45521, 65030, 76178, 91042, 190445, 227605, 266623, 380890, 455210, 533246, 1333115, 1866361, 2666230, 3732722, 9331805, 18663610]

約数ペア:

[(1, 18663610), (2, 9331805), (5, 3732722), (7, 2666230), (10, 1866361), (14, 1333115), (35, 533246), (41, 455210), (49, 380890), (70, 266623), (82, 227605), (98, 190445), (205, 91042), (245, 76178), (287, 65030), (410, 45521), (490, 38089), (574, 32515), (929, 20090), (1435, 13006), (1858, 10045), (2009, 9290), (2870, 6503), (4018, 4645)]