20135225

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{73}}^1$

素因数の和:170

約数の個数: 48

約数和(自身を含む): 29730240

約数和(自身を除く): 9595015

約数列:

[1, 5, 11, 17, 25, 55, 59, 73, 85, 187, 275, 295, 365, 425, 649, 803, 935, 1003, 1241, 1475, 1825, 3245, 4015, 4307, 4675, 5015, 6205, 11033, 13651, 16225, 20075, 21535, 25075, 31025, 47377, 55165, 68255, 73219, 107675, 236885, 275825, 341275, 366095, 805409, 1184425, 1830475, 4027045, 20135225]

約数ペア:

[(1, 20135225), (5, 4027045), (11, 1830475), (17, 1184425), (25, 805409), (55, 366095), (59, 341275), (73, 275825), (85, 236885), (187, 107675), (275, 73219), (295, 68255), (365, 55165), (425, 47377), (649, 31025), (803, 25075), (935, 21535), (1003, 20075), (1241, 16225), (1475, 13651), (1825, 11033), (3245, 6205), (4015, 5015), (4307, 4675)]