81771445

素因数分解:

$5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{677}}^1$

素因数の和:742

約数の個数: 48

約数和(自身を含む): 125213040

約数和(自身を除く): 43441595

約数列:

[1, 5, 7, 17, 29, 35, 49, 85, 119, 145, 203, 245, 493, 595, 677, 833, 1015, 1421, 2465, 3385, 3451, 4165, 4739, 7105, 11509, 17255, 19633, 23695, 24157, 33173, 57545, 80563, 98165, 120785, 137431, 165865, 333761, 402815, 563941, 687155, 962017, 1668805, 2336327, 2819705, 4810085, 11681635, 16354289, 81771445]

約数ペア:

[(1, 81771445), (5, 16354289), (7, 11681635), (17, 4810085), (29, 2819705), (35, 2336327), (49, 1668805), (85, 962017), (119, 687155), (145, 563941), (203, 402815), (245, 333761), (493, 165865), (595, 137431), (677, 120785), (833, 98165), (1015, 80563), (1421, 57545), (2465, 33173), (3385, 24157), (3451, 23695), (4165, 19633), (4739, 17255), (7105, 11509)]