213195520

素因数分解:

$2^8\times 5^1\times {\mathrm{193}}^1\times {\mathrm{863}}^1$

素因数の和:1077

約数の個数: 72

約数和(自身を含む): 513910656

約数和(自身を除く): 300715136

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 193, 256, 320, 386, 640, 772, 863, 965, 1280, 1544, 1726, 1930, 3088, 3452, 3860, 4315, 6176, 6904, 7720, 8630, 12352, 13808, 15440, 17260, 24704, 27616, 30880, 34520, 49408, 55232, 61760, 69040, 110464, 123520, 138080, 166559, 220928, 247040, 276160, 333118, 552320, 666236, 832795, 1104640, 1332472, 1665590, 2664944, 3331180, 5329888, 6662360, 10659776, 13324720, 21319552, 26649440, 42639104, 53298880, 106597760, 213195520]

約数ペア:

[(1, 213195520), (2, 106597760), (4, 53298880), (5, 42639104), (8, 26649440), (10, 21319552), (16, 13324720), (20, 10659776), (32, 6662360), (40, 5329888), (64, 3331180), (80, 2664944), (128, 1665590), (160, 1332472), (193, 1104640), (256, 832795), (320, 666236), (386, 552320), (640, 333118), (772, 276160), (863, 247040), (965, 220928), (1280, 166559), (1544, 138080), (1726, 123520), (1930, 110464), (3088, 69040), (3452, 61760), (3860, 55232), (4315, 49408), (6176, 34520), (6904, 30880), (7720, 27616), (8630, 24704), (12352, 17260), (13808, 15440)]