19844260

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{97}}^1\times {\mathrm{193}}^1$

素因数の和:352

約数の個数: 48

約数和(自身を含む): 43119216

約数和(自身を除く): 23274956

約数列:

[1, 2, 4, 5, 10, 20, 53, 97, 106, 193, 194, 212, 265, 386, 388, 485, 530, 772, 965, 970, 1060, 1930, 1940, 3860, 5141, 10229, 10282, 18721, 20458, 20564, 25705, 37442, 40916, 51145, 51410, 74884, 93605, 102290, 102820, 187210, 204580, 374420, 992213, 1984426, 3968852, 4961065, 9922130, 19844260]

約数ペア:

[(1, 19844260), (2, 9922130), (4, 4961065), (5, 3968852), (10, 1984426), (20, 992213), (53, 374420), (97, 204580), (106, 187210), (193, 102820), (194, 102290), (212, 93605), (265, 74884), (386, 51410), (388, 51145), (485, 40916), (530, 37442), (772, 25705), (965, 20564), (970, 20458), (1060, 18721), (1930, 10282), (1940, 10229), (3860, 5141)]