20440540

素因数分解:

$2^2\times 5^1\times {\mathrm{229}}^1\times {\mathrm{4463}}^1$

素因数の和:4701

約数の個数: 24

約数和(自身を含む): 43122240

約数和(自身を除く): 22681700

約数列:

[1, 2, 4, 5, 10, 20, 229, 458, 916, 1145, 2290, 4463, 4580, 8926, 17852, 22315, 44630, 89260, 1022027, 2044054, 4088108, 5110135, 10220270, 20440540]

約数ペア:

[(1, 20440540), (2, 10220270), (4, 5110135), (5, 4088108), (10, 2044054), (20, 1022027), (229, 89260), (458, 44630), (916, 22315), (1145, 17852), (2290, 8926), (4463, 4580)]