30917780

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{15937}}^1$

素因数の和:16043

約数の個数: 24

約数和(自身を含む): 65600808

約数和(自身を除く): 34683028

約数列:

[1, 2, 4, 5, 10, 20, 97, 194, 388, 485, 970, 1940, 15937, 31874, 63748, 79685, 159370, 318740, 1545889, 3091778, 6183556, 7729445, 15458890, 30917780]

約数ペア:

[(1, 30917780), (2, 15458890), (4, 7729445), (5, 6183556), (10, 3091778), (20, 1545889), (97, 318740), (194, 159370), (388, 79685), (485, 63748), (970, 31874), (1940, 15937)]