208509620

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{86161}}^1$

素因数の和:86192

約数の個数: 36

約数和(自身を含む): 481300932

約数和(自身を除く): 272791312

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 220, 242, 484, 605, 1210, 2420, 86161, 172322, 344644, 430805, 861610, 947771, 1723220, 1895542, 3791084, 4738855, 9477710, 10425481, 18955420, 20850962, 41701924, 52127405, 104254810, 208509620]

約数ペア:

[(1, 208509620), (2, 104254810), (4, 52127405), (5, 41701924), (10, 20850962), (11, 18955420), (20, 10425481), (22, 9477710), (44, 4738855), (55, 3791084), (110, 1895542), (121, 1723220), (220, 947771), (242, 861610), (484, 430805), (605, 344644), (1210, 172322), (2420, 86161)]