20410720

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{11597}}^1$

素因数の和:11623

約数の個数: 48

約数和(自身を含む): 52608528

約数和(自身を除く): 32197808

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 80, 88, 110, 160, 176, 220, 352, 440, 880, 1760, 11597, 23194, 46388, 57985, 92776, 115970, 127567, 185552, 231940, 255134, 371104, 463880, 510268, 637835, 927760, 1020536, 1275670, 1855520, 2041072, 2551340, 4082144, 5102680, 10205360, 20410720]

約数ペア:

[(1, 20410720), (2, 10205360), (4, 5102680), (5, 4082144), (8, 2551340), (10, 2041072), (11, 1855520), (16, 1275670), (20, 1020536), (22, 927760), (32, 637835), (40, 510268), (44, 463880), (55, 371104), (80, 255134), (88, 231940), (110, 185552), (160, 127567), (176, 115970), (220, 92776), (352, 57985), (440, 46388), (880, 23194), (1760, 11597)]