71720726

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{307}}^1$

素因数の和:405

約数の個数: 64

約数和(自身を含む): 141571584

約数和(自身を除く): 69850858

約数列:

[1, 2, 7, 11, 14, 22, 37, 41, 74, 77, 82, 154, 259, 287, 307, 407, 451, 518, 574, 614, 814, 902, 1517, 2149, 2849, 3034, 3157, 3377, 4298, 5698, 6314, 6754, 10619, 11359, 12587, 16687, 21238, 22718, 23639, 25174, 33374, 47278, 79513, 88109, 116809, 124949, 138457, 159026, 176218, 233618, 249898, 276914, 465719, 874643, 931438, 969199, 1749286, 1938398, 3260033, 5122909, 6520066, 10245818, 35860363, 71720726]

約数ペア:

[(1, 71720726), (2, 35860363), (7, 10245818), (11, 6520066), (14, 5122909), (22, 3260033), (37, 1938398), (41, 1749286), (74, 969199), (77, 931438), (82, 874643), (154, 465719), (259, 276914), (287, 249898), (307, 233618), (407, 176218), (451, 159026), (518, 138457), (574, 124949), (614, 116809), (814, 88109), (902, 79513), (1517, 47278), (2149, 33374), (2849, 25174), (3034, 23639), (3157, 22718), (3377, 21238), (4298, 16687), (5698, 12587), (6314, 11359), (6754, 10619)]