13513220

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{13789}}^1$

素因数の和:13812

約数の個数: 36

約数和(自身を含む): 33013260

約数和(自身を除く): 19500040

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 13789, 27578, 55156, 68945, 96523, 137890, 193046, 275780, 386092, 482615, 675661, 965230, 1351322, 1930460, 2702644, 3378305, 6756610, 13513220]

約数ペア:

[(1, 13513220), (2, 6756610), (4, 3378305), (5, 2702644), (7, 1930460), (10, 1351322), (14, 965230), (20, 675661), (28, 482615), (35, 386092), (49, 275780), (70, 193046), (98, 137890), (140, 96523), (196, 68945), (245, 55156), (490, 27578), (980, 13789)]