217542020

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{572479}}^1$

素因数の和:572507

約数の個数: 24

約数和(自身を含む): 480883200

約数和(自身を除く): 263341180

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 572479, 1144958, 2289916, 2862395, 5724790, 10877101, 11449580, 21754202, 43508404, 54385505, 108771010, 217542020]

約数ペア:

[(1, 217542020), (2, 108771010), (4, 54385505), (5, 43508404), (10, 21754202), (19, 11449580), (20, 10877101), (38, 5724790), (76, 2862395), (95, 2289916), (190, 1144958), (380, 572479)]