71238986

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{149}}^1$

素因数の和:279

約数の個数: 64

約数和(自身を含む): 137894400

約数和(自身を除く): 66655414

約数列:

[1, 2, 7, 13, 14, 26, 37, 71, 74, 91, 142, 149, 182, 259, 298, 481, 497, 518, 923, 962, 994, 1043, 1846, 1937, 2086, 2627, 3367, 3874, 5254, 5513, 6461, 6734, 10579, 11026, 12922, 13559, 18389, 21158, 27118, 34151, 36778, 38591, 68302, 71669, 74053, 77182, 137527, 143338, 148106, 239057, 275054, 391423, 478114, 501683, 782846, 962689, 1003366, 1925378, 2739961, 5088499, 5479922, 10176998, 35619493, 71238986]

約数ペア:

[(1, 71238986), (2, 35619493), (7, 10176998), (13, 5479922), (14, 5088499), (26, 2739961), (37, 1925378), (71, 1003366), (74, 962689), (91, 782846), (142, 501683), (149, 478114), (182, 391423), (259, 275054), (298, 239057), (481, 148106), (497, 143338), (518, 137527), (923, 77182), (962, 74053), (994, 71669), (1043, 68302), (1846, 38591), (1937, 36778), (2086, 34151), (2627, 27118), (3367, 21158), (3874, 18389), (5254, 13559), (5513, 12922), (6461, 11026), (6734, 10579)]