15561205

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{17}}^2\times {\mathrm{89}}^1$

素因数の和:150

約数の個数: 36

約数和(自身を含む): 22048740

約数和(自身を除く): 6487535

約数列:

[1, 5, 11, 17, 55, 85, 89, 121, 187, 289, 445, 605, 935, 979, 1445, 1513, 2057, 3179, 4895, 7565, 10285, 10769, 15895, 16643, 25721, 34969, 53845, 83215, 128605, 174845, 183073, 282931, 915365, 1414655, 3112241, 15561205]

約数ペア:

[(1, 15561205), (5, 3112241), (11, 1414655), (17, 915365), (55, 282931), (85, 183073), (89, 174845), (121, 128605), (187, 83215), (289, 53845), (445, 34969), (605, 25721), (935, 16643), (979, 15895), (1445, 10769), (1513, 10285), (2057, 7565), (3179, 4895)]