2780731954

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{20731}}^1$

素因数の和:20831

約数の個数: 64

約数和(自身を含む): 5684216832

約数和(自身を除く): 2903484878

約数列:

[1, 2, 7, 11, 13, 14, 22, 26, 67, 77, 91, 134, 143, 154, 182, 286, 469, 737, 871, 938, 1001, 1474, 1742, 2002, 5159, 6097, 9581, 10318, 12194, 19162, 20731, 41462, 67067, 134134, 145117, 228041, 269503, 290234, 456082, 539006, 1388977, 1596287, 1886521, 2777954, 2964533, 3192574, 3773042, 5929066, 9722839, 15278747, 18056701, 19445678, 20751731, 30557494, 36113402, 41503462, 106951229, 126396907, 198623711, 213902458, 252793814, 397247422, 1390365977, 2780731954]

約数ペア:

[(1, 2780731954), (2, 1390365977), (7, 397247422), (11, 252793814), (13, 213902458), (14, 198623711), (22, 126396907), (26, 106951229), (67, 41503462), (77, 36113402), (91, 30557494), (134, 20751731), (143, 19445678), (154, 18056701), (182, 15278747), (286, 9722839), (469, 5929066), (737, 3773042), (871, 3192574), (938, 2964533), (1001, 2777954), (1474, 1886521), (1742, 1596287), (2002, 1388977), (5159, 539006), (6097, 456082), (9581, 290234), (10318, 269503), (12194, 228041), (19162, 145117), (20731, 134134), (41462, 67067)]