30251960

素因数分解:

$2^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{5441}}^1$

素因数の和:5591

約数の個数: 32

約数和(自身を含む): 68569200

約数和(自身を除く): 38317240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 139, 278, 556, 695, 1112, 1390, 2780, 5441, 5560, 10882, 21764, 27205, 43528, 54410, 108820, 217640, 756299, 1512598, 3025196, 3781495, 6050392, 7562990, 15125980, 30251960]

約数ペア:

[(1, 30251960), (2, 15125980), (4, 7562990), (5, 6050392), (8, 3781495), (10, 3025196), (20, 1512598), (40, 756299), (139, 217640), (278, 108820), (556, 54410), (695, 43528), (1112, 27205), (1390, 21764), (2780, 10882), (5441, 5560)]