28159075

素因数分解:

$5^2\times 7^2\times {\mathrm{127}}^1\times {\mathrm{181}}^1$

素因数の和:332

約数の個数: 36

約数和(自身を含む): 41164032

約数和(自身を除く): 13004957

約数列:

[1, 5, 7, 25, 35, 49, 127, 175, 181, 245, 635, 889, 905, 1225, 1267, 3175, 4445, 4525, 6223, 6335, 8869, 22225, 22987, 31115, 31675, 44345, 114935, 155575, 160909, 221725, 574675, 804545, 1126363, 4022725, 5631815, 28159075]

約数ペア:

[(1, 28159075), (5, 5631815), (7, 4022725), (25, 1126363), (35, 804545), (49, 574675), (127, 221725), (175, 160909), (181, 155575), (245, 114935), (635, 44345), (889, 31675), (905, 31115), (1225, 22987), (1267, 22225), (3175, 8869), (4445, 6335), (4525, 6223)]