660821854

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{149}}^1\times {\mathrm{929}}^1$

素因数の和:1129

約数の個数: 64

約数和(自身を含む): 1285632000

約数和(自身を除く): 624810146

約数列:

[1, 2, 7, 11, 14, 22, 31, 62, 77, 149, 154, 217, 298, 341, 434, 682, 929, 1043, 1639, 1858, 2086, 2387, 3278, 4619, 4774, 6503, 9238, 10219, 11473, 13006, 20438, 22946, 28799, 32333, 50809, 57598, 64666, 71533, 101618, 138421, 143066, 201593, 276842, 316789, 355663, 403186, 633578, 711326, 968947, 1522631, 1937894, 2217523, 3045262, 4291051, 4435046, 8582102, 10658417, 21316834, 30037357, 47201561, 60074714, 94403122, 330410927, 660821854]

約数ペア:

[(1, 660821854), (2, 330410927), (7, 94403122), (11, 60074714), (14, 47201561), (22, 30037357), (31, 21316834), (62, 10658417), (77, 8582102), (149, 4435046), (154, 4291051), (217, 3045262), (298, 2217523), (341, 1937894), (434, 1522631), (682, 968947), (929, 711326), (1043, 633578), (1639, 403186), (1858, 355663), (2086, 316789), (2387, 276842), (3278, 201593), (4619, 143066), (4774, 138421), (6503, 101618), (9238, 71533), (10219, 64666), (11473, 57598), (13006, 50809), (20438, 32333), (22946, 28799)]