639472456

素因数分解:

$2^3\times 7^1\times {\mathrm{1223}}^1\times {\mathrm{9337}}^1$

素因数の和:10573

約数の個数: 32

約数和(自身を含む): 1371565440

約数和(自身を除く): 732092984

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 1223, 2446, 4892, 8561, 9337, 9784, 17122, 18674, 34244, 37348, 65359, 68488, 74696, 130718, 261436, 522872, 11419151, 22838302, 45676604, 79934057, 91353208, 159868114, 319736228, 639472456]

約数ペア:

[(1, 639472456), (2, 319736228), (4, 159868114), (7, 91353208), (8, 79934057), (14, 45676604), (28, 22838302), (56, 11419151), (1223, 522872), (2446, 261436), (4892, 130718), (8561, 74696), (9337, 68488), (9784, 65359), (17122, 37348), (18674, 34244)]