668538311

素因数分解:

$7^2\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{109}}^1\times {\mathrm{199}}^1$

素因数の和:376

約数の個数: 48

約数和(自身を含む): 857736000

約数和(自身を除く): 189197689

約数列:

[1, 7, 17, 37, 49, 109, 119, 199, 259, 629, 763, 833, 1393, 1813, 1853, 3383, 4033, 4403, 5341, 7363, 9751, 12971, 21691, 23681, 28231, 30821, 51541, 68561, 90797, 125171, 151837, 165767, 197617, 360787, 368747, 479927, 802567, 876197, 1062859, 2581229, 3359489, 5617969, 6133379, 13643639, 18068603, 39325783, 95505473, 668538311]

約数ペア:

[(1, 668538311), (7, 95505473), (17, 39325783), (37, 18068603), (49, 13643639), (109, 6133379), (119, 5617969), (199, 3359489), (259, 2581229), (629, 1062859), (763, 876197), (833, 802567), (1393, 479927), (1813, 368747), (1853, 360787), (3383, 197617), (4033, 165767), (4403, 151837), (5341, 125171), (7363, 90797), (9751, 68561), (12971, 51541), (21691, 30821), (23681, 28231)]