138716564

素因数分解:

$2^2\times 7^1\times {\mathrm{397}}^1\times {\mathrm{12479}}^1$

素因数の和:12887

約数の個数: 24

約数和(自身を含む): 278154240

約数和(自身を除く): 139437676

約数列:

[1, 2, 4, 7, 14, 28, 397, 794, 1588, 2779, 5558, 11116, 12479, 24958, 49916, 87353, 174706, 349412, 4954163, 9908326, 19816652, 34679141, 69358282, 138716564]

約数ペア:

[(1, 138716564), (2, 69358282), (4, 34679141), (7, 19816652), (14, 9908326), (28, 4954163), (397, 349412), (794, 174706), (1588, 87353), (2779, 49916), (5558, 24958), (11116, 12479)]