17744440

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{499}}^1$

素因数の和:644

約数の個数: 64

約数和(自身を含む): 46080000

約数和(自身を除く): 28335560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 127, 140, 254, 280, 499, 508, 635, 889, 998, 1016, 1270, 1778, 1996, 2495, 2540, 3493, 3556, 3992, 4445, 4990, 5080, 6986, 7112, 8890, 9980, 13972, 17465, 17780, 19960, 27944, 34930, 35560, 63373, 69860, 126746, 139720, 253492, 316865, 443611, 506984, 633730, 887222, 1267460, 1774444, 2218055, 2534920, 3548888, 4436110, 8872220, 17744440]

約数ペア:

[(1, 17744440), (2, 8872220), (4, 4436110), (5, 3548888), (7, 2534920), (8, 2218055), (10, 1774444), (14, 1267460), (20, 887222), (28, 633730), (35, 506984), (40, 443611), (56, 316865), (70, 253492), (127, 139720), (140, 126746), (254, 69860), (280, 63373), (499, 35560), (508, 34930), (635, 27944), (889, 19960), (998, 17780), (1016, 17465), (1270, 13972), (1778, 9980), (1996, 8890), (2495, 7112), (2540, 6986), (3493, 5080), (3556, 4990), (3992, 4445)]