28970980

素因数分解:

$2^2\times 5^1\times {\mathrm{367}}^1\times {\mathrm{3947}}^1$

素因数の和:4323

約数の個数: 24

約数和(自身を含む): 61020288

約数和(自身を除く): 32049308

約数列:

[1, 2, 4, 5, 10, 20, 367, 734, 1468, 1835, 3670, 3947, 7340, 7894, 15788, 19735, 39470, 78940, 1448549, 2897098, 5794196, 7242745, 14485490, 28970980]

約数ペア:

[(1, 28970980), (2, 14485490), (4, 7242745), (5, 5794196), (10, 2897098), (20, 1448549), (367, 78940), (734, 39470), (1468, 19735), (1835, 15788), (3670, 7894), (3947, 7340)]