638996956

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{67}}^1\times {\mathrm{4957}}^1$

素因数の和:5078

約数の個数: 48

約数和(自身を含む): 1255524256

約数和(自身を除く): 616527300

約数列:

[1, 2, 4, 13, 26, 37, 52, 67, 74, 134, 148, 268, 481, 871, 962, 1742, 1924, 2479, 3484, 4957, 4958, 9914, 9916, 19828, 32227, 64441, 64454, 128882, 128908, 183409, 257764, 332119, 366818, 664238, 733636, 1328476, 2384317, 4317547, 4768634, 8635094, 9537268, 12288403, 17270188, 24576806, 49153612, 159749239, 319498478, 638996956]

約数ペア:

[(1, 638996956), (2, 319498478), (4, 159749239), (13, 49153612), (26, 24576806), (37, 17270188), (52, 12288403), (67, 9537268), (74, 8635094), (134, 4768634), (148, 4317547), (268, 2384317), (481, 1328476), (871, 733636), (962, 664238), (1742, 366818), (1924, 332119), (2479, 257764), (3484, 183409), (4957, 128908), (4958, 128882), (9914, 64454), (9916, 64441), (19828, 32227)]