256910720

素因数分解:

$2^7\times 5^1\times {\mathrm{11}}^1\times {\mathrm{36493}}^1$

素因数の和:36523

約数の個数: 64

約数和(自身を含む): 670029840

約数和(自身を除く): 413119120

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 128, 160, 176, 220, 320, 352, 440, 640, 704, 880, 1408, 1760, 3520, 7040, 36493, 72986, 145972, 182465, 291944, 364930, 401423, 583888, 729860, 802846, 1167776, 1459720, 1605692, 2007115, 2335552, 2919440, 3211384, 4014230, 4671104, 5838880, 6422768, 8028460, 11677760, 12845536, 16056920, 23355520, 25691072, 32113840, 51382144, 64227680, 128455360, 256910720]

約数ペア:

[(1, 256910720), (2, 128455360), (4, 64227680), (5, 51382144), (8, 32113840), (10, 25691072), (11, 23355520), (16, 16056920), (20, 12845536), (22, 11677760), (32, 8028460), (40, 6422768), (44, 5838880), (55, 4671104), (64, 4014230), (80, 3211384), (88, 2919440), (110, 2335552), (128, 2007115), (160, 1605692), (176, 1459720), (220, 1167776), (320, 802846), (352, 729860), (440, 583888), (640, 401423), (704, 364930), (880, 291944), (1408, 182465), (1760, 145972), (3520, 72986), (7040, 36493)]