28614820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{701}}^1$

素因数の和:880

約数の個数: 48

約数和(自身を含む): 65218608

約数和(自身を除く): 36603788

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 157, 260, 314, 628, 701, 785, 1402, 1570, 2041, 2804, 3140, 3505, 4082, 7010, 8164, 9113, 10205, 14020, 18226, 20410, 36452, 40820, 45565, 91130, 110057, 182260, 220114, 440228, 550285, 1100570, 1430741, 2201140, 2861482, 5722964, 7153705, 14307410, 28614820]

約数ペア:

[(1, 28614820), (2, 14307410), (4, 7153705), (5, 5722964), (10, 2861482), (13, 2201140), (20, 1430741), (26, 1100570), (52, 550285), (65, 440228), (130, 220114), (157, 182260), (260, 110057), (314, 91130), (628, 45565), (701, 40820), (785, 36452), (1402, 20410), (1570, 18226), (2041, 14020), (2804, 10205), (3140, 9113), (3505, 8164), (4082, 7010)]