28666960

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{71}}^1\times {\mathrm{103}}^1$

素因数の和:201

約数の個数: 120

約数和(自身を含む): 79387776

約数和(自身を除く): 50720816

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 71, 80, 98, 103, 112, 140, 142, 196, 206, 245, 280, 284, 355, 392, 412, 490, 497, 515, 560, 568, 710, 721, 784, 824, 980, 994, 1030, 1136, 1420, 1442, 1648, 1960, 1988, 2060, 2485, 2840, 2884, 3479, 3605, 3920, 3976, 4120, 4970, 5047, 5680, 5768, 6958, 7210, 7313, 7952, 8240, 9940, 10094, 11536, 13916, 14420, 14626, 17395, 19880, 20188, 25235, 27832, 28840, 29252, 34790, 36565, 39760, 40376, 50470, 51191, 55664, 57680, 58504, 69580, 73130, 80752, 100940, 102382, 117008, 139160, 146260, 201880, 204764, 255955, 278320, 292520, 358337, 403760, 409528, 511910, 585040, 716674, 819056, 1023820, 1433348, 1791685, 2047640, 2866696, 3583370, 4095280, 5733392, 7166740, 14333480, 28666960]

約数ペア:

[(1, 28666960), (2, 14333480), (4, 7166740), (5, 5733392), (7, 4095280), (8, 3583370), (10, 2866696), (14, 2047640), (16, 1791685), (20, 1433348), (28, 1023820), (35, 819056), (40, 716674), (49, 585040), (56, 511910), (70, 409528), (71, 403760), (80, 358337), (98, 292520), (103, 278320), (112, 255955), (140, 204764), (142, 201880), (196, 146260), (206, 139160), (245, 117008), (280, 102382), (284, 100940), (355, 80752), (392, 73130), (412, 69580), (490, 58504), (497, 57680), (515, 55664), (560, 51191), (568, 50470), (710, 40376), (721, 39760), (784, 36565), (824, 34790), (980, 29252), (994, 28840), (1030, 27832), (1136, 25235), (1420, 20188), (1442, 19880), (1648, 17395), (1960, 14626), (1988, 14420), (2060, 13916), (2485, 11536), (2840, 10094), (2884, 9940), (3479, 8240), (3605, 7952), (3920, 7313), (3976, 7210), (4120, 6958), (4970, 5768), (5047, 5680)]