217871335

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{1223}}^1$

素因数の和:1359

約数の個数: 32

約数和(自身を含む): 296110080

約数和(自身を除く): 78238745

約数列:

[1, 5, 11, 41, 55, 79, 205, 395, 451, 869, 1223, 2255, 3239, 4345, 6115, 13453, 16195, 35629, 50143, 67265, 96617, 178145, 250715, 483085, 551573, 1062787, 2757865, 3961297, 5313935, 19806485, 43574267, 217871335]

約数ペア:

[(1, 217871335), (5, 43574267), (11, 19806485), (41, 5313935), (55, 3961297), (79, 2757865), (205, 1062787), (395, 551573), (451, 483085), (869, 250715), (1223, 178145), (2255, 96617), (3239, 67265), (4345, 50143), (6115, 35629), (13453, 16195)]