81616408

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{237257}}^1$

素因数の和:237306

約数の個数: 16

約数和(自身を含む): 156590280

約数和(自身を除く): 74973872

約数列:

[1, 2, 4, 8, 43, 86, 172, 344, 237257, 474514, 949028, 1898056, 10202051, 20404102, 40808204, 81616408]

約数ペア:

[(1, 81616408), (2, 40808204), (4, 20404102), (8, 10202051), (43, 1898056), (86, 949028), (172, 474514), (344, 237257)]