19009734920

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43203943}}^1$

素因数の和:43203965

約数の個数: 32

約数和(自身を含む): 46660259520

約数和(自身を除く): 27650524600

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 43203943, 86407886, 172815772, 216019715, 345631544, 432039430, 475243373, 864078860, 950486746, 1728157720, 1900973492, 2376216865, 3801946984, 4752433730, 9504867460, 19009734920]

約数ペア:

[(1, 19009734920), (2, 9504867460), (4, 4752433730), (5, 3801946984), (8, 2376216865), (10, 1900973492), (11, 1728157720), (20, 950486746), (22, 864078860), (40, 475243373), (44, 432039430), (55, 345631544), (88, 216019715), (110, 172815772), (220, 86407886), (440, 43203943)]