28541716

素因数分解:

$2^2\times 7^3\times {\mathrm{71}}^1\times {\mathrm{293}}^1$

素因数の和:389

約数の個数: 48

約数和(自身を含む): 59270400

約数和(自身を除く): 30728684

約数列:

[1, 2, 4, 7, 14, 28, 49, 71, 98, 142, 196, 284, 293, 343, 497, 586, 686, 994, 1172, 1372, 1988, 2051, 3479, 4102, 6958, 8204, 13916, 14357, 20803, 24353, 28714, 41606, 48706, 57428, 83212, 97412, 100499, 145621, 200998, 291242, 401996, 582484, 1019347, 2038694, 4077388, 7135429, 14270858, 28541716]

約数ペア:

[(1, 28541716), (2, 14270858), (4, 7135429), (7, 4077388), (14, 2038694), (28, 1019347), (49, 582484), (71, 401996), (98, 291242), (142, 200998), (196, 145621), (284, 100499), (293, 97412), (343, 83212), (497, 57428), (586, 48706), (686, 41606), (994, 28714), (1172, 24353), (1372, 20803), (1988, 14357), (2051, 13916), (3479, 8204), (4102, 6958)]