1557648638

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{421}}^1\times {\mathrm{701}}^1$

素因数の和:1173

約数の個数: 64

約数和(自身を含む): 2986139520

約数和(自身を除く): 1428490882

約数列:

[1, 2, 7, 13, 14, 26, 29, 58, 91, 182, 203, 377, 406, 421, 701, 754, 842, 1402, 2639, 2947, 4907, 5278, 5473, 5894, 9113, 9814, 10946, 12209, 18226, 20329, 24418, 38311, 40658, 63791, 76622, 85463, 127582, 142303, 158717, 170926, 264277, 284606, 295121, 317434, 528554, 590242, 1111019, 1849939, 2065847, 2222038, 3699878, 3836573, 4131694, 7673146, 8558509, 17117018, 26856011, 53712022, 59909563, 111260617, 119819126, 222521234, 778824319, 1557648638]

約数ペア:

[(1, 1557648638), (2, 778824319), (7, 222521234), (13, 119819126), (14, 111260617), (26, 59909563), (29, 53712022), (58, 26856011), (91, 17117018), (182, 8558509), (203, 7673146), (377, 4131694), (406, 3836573), (421, 3699878), (701, 2222038), (754, 2065847), (842, 1849939), (1402, 1111019), (2639, 590242), (2947, 528554), (4907, 317434), (5278, 295121), (5473, 284606), (5894, 264277), (9113, 170926), (9814, 158717), (10946, 142303), (12209, 127582), (18226, 85463), (20329, 76622), (24418, 63791), (38311, 40658)]