28039040

素因数分解:

$2^7\times 5^1\times {\mathrm{193}}^1\times {\mathrm{227}}^1$

素因数の和:439

約数の個数: 64

約数和(自身を含む): 67674960

約数和(自身を除く): 39635920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 193, 227, 320, 386, 454, 640, 772, 908, 965, 1135, 1544, 1816, 1930, 2270, 3088, 3632, 3860, 4540, 6176, 7264, 7720, 9080, 12352, 14528, 15440, 18160, 24704, 29056, 30880, 36320, 43811, 61760, 72640, 87622, 123520, 145280, 175244, 219055, 350488, 438110, 700976, 876220, 1401952, 1752440, 2803904, 3504880, 5607808, 7009760, 14019520, 28039040]

約数ペア:

[(1, 28039040), (2, 14019520), (4, 7009760), (5, 5607808), (8, 3504880), (10, 2803904), (16, 1752440), (20, 1401952), (32, 876220), (40, 700976), (64, 438110), (80, 350488), (128, 219055), (160, 175244), (193, 145280), (227, 123520), (320, 87622), (386, 72640), (454, 61760), (640, 43811), (772, 36320), (908, 30880), (965, 29056), (1135, 24704), (1544, 18160), (1816, 15440), (1930, 14528), (2270, 12352), (3088, 9080), (3632, 7720), (3860, 7264), (4540, 6176)]