164550980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{5381}}^1$

素因数の和:5540

約数の個数: 48

約数和(自身を含む): 379753920

約数和(自身を除く): 215202940

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 139, 220, 278, 556, 695, 1390, 1529, 2780, 3058, 5381, 6116, 7645, 10762, 15290, 21524, 26905, 30580, 53810, 59191, 107620, 118382, 236764, 295955, 591910, 747959, 1183820, 1495918, 2991836, 3739795, 7479590, 8227549, 14959180, 16455098, 32910196, 41137745, 82275490, 164550980]

約数ペア:

[(1, 164550980), (2, 82275490), (4, 41137745), (5, 32910196), (10, 16455098), (11, 14959180), (20, 8227549), (22, 7479590), (44, 3739795), (55, 2991836), (110, 1495918), (139, 1183820), (220, 747959), (278, 591910), (556, 295955), (695, 236764), (1390, 118382), (1529, 107620), (2780, 59191), (3058, 53810), (5381, 30580), (6116, 26905), (7645, 21524), (10762, 15290)]