218553640

素因数分解:

$2^3\times 5^1\times {\mathrm{103}}^1\times {\mathrm{53047}}^1$

素因数の和:53161

約数の個数: 32

約数和(自身を含む): 496529280

約数和(自身を除く): 277975640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 103, 206, 412, 515, 824, 1030, 2060, 4120, 53047, 106094, 212188, 265235, 424376, 530470, 1060940, 2121880, 5463841, 10927682, 21855364, 27319205, 43710728, 54638410, 109276820, 218553640]

約数ペア:

[(1, 218553640), (2, 109276820), (4, 54638410), (5, 43710728), (8, 27319205), (10, 21855364), (20, 10927682), (40, 5463841), (103, 2121880), (206, 1060940), (412, 530470), (515, 424376), (824, 265235), (1030, 212188), (2060, 106094), (4120, 53047)]