263672320

素因数分解:

$2^9\times 5^1\times {\mathrm{127}}^1\times {\mathrm{811}}^1$

素因数の和:961

約数の個数: 80

約数和(自身を含む): 637959168

約数和(自身を除く): 374286848

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 127, 128, 160, 254, 256, 320, 508, 512, 635, 640, 811, 1016, 1270, 1280, 1622, 2032, 2540, 2560, 3244, 4055, 4064, 5080, 6488, 8110, 8128, 10160, 12976, 16220, 16256, 20320, 25952, 32440, 32512, 40640, 51904, 64880, 65024, 81280, 102997, 103808, 129760, 162560, 205994, 207616, 259520, 325120, 411988, 415232, 514985, 519040, 823976, 1029970, 1038080, 1647952, 2059940, 2076160, 3295904, 4119880, 6591808, 8239760, 13183616, 16479520, 26367232, 32959040, 52734464, 65918080, 131836160, 263672320]

約数ペア:

[(1, 263672320), (2, 131836160), (4, 65918080), (5, 52734464), (8, 32959040), (10, 26367232), (16, 16479520), (20, 13183616), (32, 8239760), (40, 6591808), (64, 4119880), (80, 3295904), (127, 2076160), (128, 2059940), (160, 1647952), (254, 1038080), (256, 1029970), (320, 823976), (508, 519040), (512, 514985), (635, 415232), (640, 411988), (811, 325120), (1016, 259520), (1270, 207616), (1280, 205994), (1622, 162560), (2032, 129760), (2540, 103808), (2560, 102997), (3244, 81280), (4055, 65024), (4064, 64880), (5080, 51904), (6488, 40640), (8110, 32512), (8128, 32440), (10160, 25952), (12976, 20320), (16220, 16256)]