180520978

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{1319}}^1\times {\mathrm{6221}}^1$

素因数の和:7553

約数の個数: 16

約数和(自身を含む): 295669440

約数和(自身を除く): 115148462

約数列:

[1, 2, 11, 22, 1319, 2638, 6221, 12442, 14509, 29018, 68431, 136862, 8205499, 16410998, 90260489, 180520978]

約数ペア:

[(1, 180520978), (2, 90260489), (11, 16410998), (22, 8205499), (1319, 136862), (2638, 68431), (6221, 29018), (12442, 14509)]