261639785

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{2297}}^1$

素因数の和:2441

約数の個数: 32

約数和(自身を含む): 364003200

約数和(自身を除く): 102363415

約数列:

[1, 5, 11, 19, 55, 95, 109, 209, 545, 1045, 1199, 2071, 2297, 5995, 10355, 11485, 22781, 25267, 43643, 113905, 126335, 218215, 250373, 480073, 1251865, 2400365, 2754103, 4757087, 13770515, 23785435, 52327957, 261639785]

約数ペア:

[(1, 261639785), (5, 52327957), (11, 23785435), (19, 13770515), (55, 4757087), (95, 2754103), (109, 2400365), (209, 1251865), (545, 480073), (1045, 250373), (1199, 218215), (2071, 126335), (2297, 113905), (5995, 43643), (10355, 25267), (11485, 22781)]