51378866

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{127}}^1$

素因数の和:255

約数の個数: 64

約数和(自身を含む): 100859904

約数和(自身を除く): 49481038

約数列:

[1, 2, 7, 11, 14, 22, 37, 71, 74, 77, 127, 142, 154, 254, 259, 407, 497, 518, 781, 814, 889, 994, 1397, 1562, 1778, 2627, 2794, 2849, 4699, 5254, 5467, 5698, 9017, 9398, 9779, 10934, 18034, 18389, 19558, 28897, 32893, 36778, 51689, 57794, 63119, 65786, 99187, 103378, 126238, 198374, 202279, 333629, 361823, 404558, 667258, 694309, 723646, 1388618, 2335403, 3669919, 4670806, 7339838, 25689433, 51378866]

約数ペア:

[(1, 51378866), (2, 25689433), (7, 7339838), (11, 4670806), (14, 3669919), (22, 2335403), (37, 1388618), (71, 723646), (74, 694309), (77, 667258), (127, 404558), (142, 361823), (154, 333629), (254, 202279), (259, 198374), (407, 126238), (497, 103378), (518, 99187), (781, 65786), (814, 63119), (889, 57794), (994, 51689), (1397, 36778), (1562, 32893), (1778, 28897), (2627, 19558), (2794, 18389), (2849, 18034), (4699, 10934), (5254, 9779), (5467, 9398), (5698, 9017)]