81262804

素因数分解:

$2^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{78439}}^1$

素因数の和:78487

約数の個数: 24

約数和(自身を含む): 166920320

約数和(自身を除く): 85657516

約数列:

[1, 2, 4, 7, 14, 28, 37, 74, 148, 259, 518, 1036, 78439, 156878, 313756, 549073, 1098146, 2196292, 2902243, 5804486, 11608972, 20315701, 40631402, 81262804]

約数ペア:

[(1, 81262804), (2, 40631402), (4, 20315701), (7, 11608972), (14, 5804486), (28, 2902243), (37, 2196292), (74, 1098146), (148, 549073), (259, 313756), (518, 156878), (1036, 78439)]