18651520

素因数分解:

$2^7\times 5^1\times {\mathrm{151}}^1\times {\mathrm{193}}^1$

素因数の和:363

約数の個数: 64

約数和(自身を含む): 45116640

約数和(自身を除く): 26465120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 151, 160, 193, 302, 320, 386, 604, 640, 755, 772, 965, 1208, 1510, 1544, 1930, 2416, 3020, 3088, 3860, 4832, 6040, 6176, 7720, 9664, 12080, 12352, 15440, 19328, 24160, 24704, 29143, 30880, 48320, 58286, 61760, 96640, 116572, 123520, 145715, 233144, 291430, 466288, 582860, 932576, 1165720, 1865152, 2331440, 3730304, 4662880, 9325760, 18651520]

約数ペア:

[(1, 18651520), (2, 9325760), (4, 4662880), (5, 3730304), (8, 2331440), (10, 1865152), (16, 1165720), (20, 932576), (32, 582860), (40, 466288), (64, 291430), (80, 233144), (128, 145715), (151, 123520), (160, 116572), (193, 96640), (302, 61760), (320, 58286), (386, 48320), (604, 30880), (640, 29143), (755, 24704), (772, 24160), (965, 19328), (1208, 15440), (1510, 12352), (1544, 12080), (1930, 9664), (2416, 7720), (3020, 6176), (3088, 6040), (3860, 4832)]