42558020

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{23909}}^1$

素因数の和:24007

約数の個数: 24

約数和(自身を含む): 90379800

約数和(自身を除く): 47821780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 23909, 47818, 95636, 119545, 239090, 478180, 2127901, 4255802, 8511604, 10639505, 21279010, 42558020]

約数ペア:

[(1, 42558020), (2, 21279010), (4, 10639505), (5, 8511604), (10, 4255802), (20, 2127901), (89, 478180), (178, 239090), (356, 119545), (445, 95636), (890, 47818), (1780, 23909)]