81256945

素因数分解:

$5^1\times 7^2\times {\mathrm{11}}^2\times {\mathrm{2741}}^1$

素因数の和:2782

約数の個数: 36

約数和(自身を含む): 124722612

約数和(自身を除く): 43465667

約数列:

[1, 5, 7, 11, 35, 49, 55, 77, 121, 245, 385, 539, 605, 847, 2695, 2741, 4235, 5929, 13705, 19187, 29645, 30151, 95935, 134309, 150755, 211057, 331661, 671545, 1055285, 1477399, 1658305, 2321627, 7386995, 11608135, 16251389, 81256945]

約数ペア:

[(1, 81256945), (5, 16251389), (7, 11608135), (11, 7386995), (35, 2321627), (49, 1658305), (55, 1477399), (77, 1055285), (121, 671545), (245, 331661), (385, 211057), (539, 150755), (605, 134309), (847, 95935), (2695, 30151), (2741, 29645), (4235, 19187), (5929, 13705)]