9138920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{257}}^1$

素因数の和:402

約数の個数: 64

約数和(自身を含む): 23777280

約数和(自身を除く): 14638360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 127, 140, 254, 257, 280, 508, 514, 635, 889, 1016, 1028, 1270, 1285, 1778, 1799, 2056, 2540, 2570, 3556, 3598, 4445, 5080, 5140, 7112, 7196, 8890, 8995, 10280, 14392, 17780, 17990, 32639, 35560, 35980, 65278, 71960, 130556, 163195, 228473, 261112, 326390, 456946, 652780, 913892, 1142365, 1305560, 1827784, 2284730, 4569460, 9138920]

約数ペア:

[(1, 9138920), (2, 4569460), (4, 2284730), (5, 1827784), (7, 1305560), (8, 1142365), (10, 913892), (14, 652780), (20, 456946), (28, 326390), (35, 261112), (40, 228473), (56, 163195), (70, 130556), (127, 71960), (140, 65278), (254, 35980), (257, 35560), (280, 32639), (508, 17990), (514, 17780), (635, 14392), (889, 10280), (1016, 8995), (1028, 8890), (1270, 7196), (1285, 7112), (1778, 5140), (1799, 5080), (2056, 4445), (2540, 3598), (2570, 3556)]