81156724

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{149}}^1\times {\mathrm{12379}}^1$

素因数の和:12543

約数の個数: 24

約数和(自身を含む): 155988000

約数和(自身を除く): 74831276

約数列:

[1, 2, 4, 11, 22, 44, 149, 298, 596, 1639, 3278, 6556, 12379, 24758, 49516, 136169, 272338, 544676, 1844471, 3688942, 7377884, 20289181, 40578362, 81156724]

約数ペア:

[(1, 81156724), (2, 40578362), (4, 20289181), (11, 7377884), (22, 3688942), (44, 1844471), (149, 544676), (298, 272338), (596, 136169), (1639, 49516), (3278, 24758), (6556, 12379)]