28130900

素因数分解:

$2^2\times 5^2\times 7^2\times {\mathrm{5741}}^1$

素因数の和:5769

約数の個数: 54

約数和(自身を含む): 71022798

約数和(自身を除く): 42891898

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 49, 50, 70, 98, 100, 140, 175, 196, 245, 350, 490, 700, 980, 1225, 2450, 4900, 5741, 11482, 22964, 28705, 40187, 57410, 80374, 114820, 143525, 160748, 200935, 281309, 287050, 401870, 562618, 574100, 803740, 1004675, 1125236, 1406545, 2009350, 2813090, 4018700, 5626180, 7032725, 14065450, 28130900]

約数ペア:

[(1, 28130900), (2, 14065450), (4, 7032725), (5, 5626180), (7, 4018700), (10, 2813090), (14, 2009350), (20, 1406545), (25, 1125236), (28, 1004675), (35, 803740), (49, 574100), (50, 562618), (70, 401870), (98, 287050), (100, 281309), (140, 200935), (175, 160748), (196, 143525), (245, 114820), (350, 80374), (490, 57410), (700, 40187), (980, 28705), (1225, 22964), (2450, 11482), (4900, 5741)]