20021328

素因数分解:

$2^4\times 3^2\times {\mathrm{257}}^1\times {\mathrm{541}}^1$

素因数の和:812

約数の個数: 60

約数和(自身を含む): 56353908

約数和(自身を除く): 36332580

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144, 257, 514, 541, 771, 1028, 1082, 1542, 1623, 2056, 2164, 2313, 3084, 3246, 4112, 4328, 4626, 4869, 6168, 6492, 8656, 9252, 9738, 12336, 12984, 18504, 19476, 25968, 37008, 38952, 77904, 139037, 278074, 417111, 556148, 834222, 1112296, 1251333, 1668444, 2224592, 2502666, 3336888, 5005332, 6673776, 10010664, 20021328]

約数ペア:

[(1, 20021328), (2, 10010664), (3, 6673776), (4, 5005332), (6, 3336888), (8, 2502666), (9, 2224592), (12, 1668444), (16, 1251333), (18, 1112296), (24, 834222), (36, 556148), (48, 417111), (72, 278074), (144, 139037), (257, 77904), (514, 38952), (541, 37008), (771, 25968), (1028, 19476), (1082, 18504), (1542, 12984), (1623, 12336), (2056, 9738), (2164, 9252), (2313, 8656), (3084, 6492), (3246, 6168), (4112, 4869), (4328, 4626)]