220173986

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{173}}^1\times {\mathrm{379}}^1$

素因数の和:650

約数の個数: 32

約数和(自身を含む): 352287360

約数和(自身を除く): 132113374

約数列:

[1, 2, 23, 46, 73, 146, 173, 346, 379, 758, 1679, 3358, 3979, 7958, 8717, 12629, 17434, 25258, 27667, 55334, 65567, 131134, 290467, 580934, 636341, 1272682, 1508041, 3016082, 4786391, 9572782, 110086993, 220173986]

約数ペア:

[(1, 220173986), (2, 110086993), (23, 9572782), (46, 4786391), (73, 3016082), (146, 1508041), (173, 1272682), (346, 636341), (379, 580934), (758, 290467), (1679, 131134), (3358, 65567), (3979, 55334), (7958, 27667), (8717, 25258), (12629, 17434)]