19921640

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{9397}}^1$

素因数の和:9461

約数の個数: 32

約数和(自身を含む): 45674280

約数和(自身を除く): 25752640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 212, 265, 424, 530, 1060, 2120, 9397, 18794, 37588, 46985, 75176, 93970, 187940, 375880, 498041, 996082, 1992164, 2490205, 3984328, 4980410, 9960820, 19921640]

約数ペア:

[(1, 19921640), (2, 9960820), (4, 4980410), (5, 3984328), (8, 2490205), (10, 1992164), (20, 996082), (40, 498041), (53, 375880), (106, 187940), (212, 93970), (265, 75176), (424, 46985), (530, 37588), (1060, 18794), (2120, 9397)]