21080600

素因数分解:

$2^3\times 5^2\times {\mathrm{109}}^1\times {\mathrm{967}}^1$

素因数の和:1092

約数の個数: 48

約数和(自身を含む): 49513200

約数和(自身を除く): 28432600

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 109, 200, 218, 436, 545, 872, 967, 1090, 1934, 2180, 2725, 3868, 4360, 4835, 5450, 7736, 9670, 10900, 19340, 21800, 24175, 38680, 48350, 96700, 105403, 193400, 210806, 421612, 527015, 843224, 1054030, 2108060, 2635075, 4216120, 5270150, 10540300, 21080600]

約数ペア:

[(1, 21080600), (2, 10540300), (4, 5270150), (5, 4216120), (8, 2635075), (10, 2108060), (20, 1054030), (25, 843224), (40, 527015), (50, 421612), (100, 210806), (109, 193400), (200, 105403), (218, 96700), (436, 48350), (545, 38680), (872, 24175), (967, 21800), (1090, 19340), (1934, 10900), (2180, 9670), (2725, 7736), (3868, 5450), (4360, 4835)]