204077140

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{359}}^1\times {\mathrm{661}}^1$

素因数の和:1072

約数の個数: 48

約数和(自身を含む): 440415360

約数和(自身を除く): 236338220

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 359, 430, 661, 718, 860, 1322, 1436, 1795, 2644, 3305, 3590, 6610, 7180, 13220, 15437, 28423, 30874, 56846, 61748, 77185, 113692, 142115, 154370, 237299, 284230, 308740, 474598, 568460, 949196, 1186495, 2372990, 4745980, 10203857, 20407714, 40815428, 51019285, 102038570, 204077140]

約数ペア:

[(1, 204077140), (2, 102038570), (4, 51019285), (5, 40815428), (10, 20407714), (20, 10203857), (43, 4745980), (86, 2372990), (172, 1186495), (215, 949196), (359, 568460), (430, 474598), (661, 308740), (718, 284230), (860, 237299), (1322, 154370), (1436, 142115), (1795, 113692), (2644, 77185), (3305, 61748), (3590, 56846), (6610, 30874), (7180, 28423), (13220, 15437)]