42686180

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{23981}}^1$

素因数の和:24079

約数の個数: 24

約数和(自身を含む): 90651960

約数和(自身を除く): 47965780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 23981, 47962, 95924, 119905, 239810, 479620, 2134309, 4268618, 8537236, 10671545, 21343090, 42686180]

約数ペア:

[(1, 42686180), (2, 21343090), (4, 10671545), (5, 8537236), (10, 4268618), (20, 2134309), (89, 479620), (178, 239810), (356, 119905), (445, 95924), (890, 47962), (1780, 23981)]