28876694

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{139}}^1$

素因数の和:249

約数の個数: 64

約数和(自身を含む): 58060800

約数和(自身を除く): 29184106

約数列:

[1, 2, 7, 11, 14, 19, 22, 38, 71, 77, 133, 139, 142, 154, 209, 266, 278, 418, 497, 781, 973, 994, 1349, 1463, 1529, 1562, 1946, 2641, 2698, 2926, 3058, 5282, 5467, 9443, 9869, 10703, 10934, 14839, 18487, 18886, 19738, 21406, 29051, 29678, 36974, 58102, 69083, 103873, 108559, 138166, 187511, 203357, 207746, 217118, 375022, 406714, 759913, 1312577, 1519826, 2062621, 2625154, 4125242, 14438347, 28876694]

約数ペア:

[(1, 28876694), (2, 14438347), (7, 4125242), (11, 2625154), (14, 2062621), (19, 1519826), (22, 1312577), (38, 759913), (71, 406714), (77, 375022), (133, 217118), (139, 207746), (142, 203357), (154, 187511), (209, 138166), (266, 108559), (278, 103873), (418, 69083), (497, 58102), (781, 36974), (973, 29678), (994, 29051), (1349, 21406), (1463, 19738), (1529, 18886), (1562, 18487), (1946, 14839), (2641, 10934), (2698, 10703), (2926, 9869), (3058, 9443), (5282, 5467)]