140272321

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1\times {\mathrm{347}}^1$

素因数の和:493

約数の個数: 32

約数和(自身を含む): 176394240

約数和(自身を除く): 36121919

約数列:

[1, 7, 17, 43, 79, 119, 301, 347, 553, 731, 1343, 2429, 3397, 5117, 5899, 9401, 14921, 23779, 27413, 41293, 57749, 104447, 191891, 253657, 404243, 466021, 1178759, 1775599, 3262147, 8251313, 20038903, 140272321]

約数ペア:

[(1, 140272321), (7, 20038903), (17, 8251313), (43, 3262147), (79, 1775599), (119, 1178759), (301, 466021), (347, 404243), (553, 253657), (731, 191891), (1343, 104447), (2429, 57749), (3397, 41293), (5117, 27413), (5899, 23779), (9401, 14921)]