210127720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{479}}^1\times {\mathrm{997}}^1$

素因数の和:1498

約数の個数: 64

約数和(自身を含む): 517363200

約数和(自身を除く): 307235480

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 479, 958, 997, 1916, 1994, 2395, 3832, 3988, 4790, 4985, 5269, 7976, 9580, 9970, 10538, 10967, 19160, 19940, 21076, 21934, 26345, 39880, 42152, 43868, 52690, 54835, 87736, 105380, 109670, 210760, 219340, 438680, 477563, 955126, 1910252, 2387815, 3820504, 4775630, 5253193, 9551260, 10506386, 19102520, 21012772, 26265965, 42025544, 52531930, 105063860, 210127720]

約数ペア:

[(1, 210127720), (2, 105063860), (4, 52531930), (5, 42025544), (8, 26265965), (10, 21012772), (11, 19102520), (20, 10506386), (22, 9551260), (40, 5253193), (44, 4775630), (55, 3820504), (88, 2387815), (110, 1910252), (220, 955126), (440, 477563), (479, 438680), (958, 219340), (997, 210760), (1916, 109670), (1994, 105380), (2395, 87736), (3832, 54835), (3988, 52690), (4790, 43868), (4985, 42152), (5269, 39880), (7976, 26345), (9580, 21934), (9970, 21076), (10538, 19940), (10967, 19160)]