81287248

素因数分解:

$2^4\times 7^1\times {\mathrm{149}}^1\times {\mathrm{4871}}^1$

素因数の和:5035

約数の個数: 40

約数和(自身を含む): 181238400

約数和(自身を除く): 99951152

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 149, 298, 596, 1043, 1192, 2086, 2384, 4172, 4871, 8344, 9742, 16688, 19484, 34097, 38968, 68194, 77936, 136388, 272776, 545552, 725779, 1451558, 2903116, 5080453, 5806232, 10160906, 11612464, 20321812, 40643624, 81287248]

約数ペア:

[(1, 81287248), (2, 40643624), (4, 20321812), (7, 11612464), (8, 10160906), (14, 5806232), (16, 5080453), (28, 2903116), (56, 1451558), (112, 725779), (149, 545552), (298, 272776), (596, 136388), (1043, 77936), (1192, 68194), (2086, 38968), (2384, 34097), (4172, 19484), (4871, 16688), (8344, 9742)]