1999604816

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{151}}^1\times {\mathrm{1123}}^1$

素因数の和:1360

約数の個数: 80

約数和(自身を含む): 4321771008

約数和(自身を除く): 2322166192

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 67, 88, 134, 151, 176, 268, 302, 536, 604, 737, 1072, 1123, 1208, 1474, 1661, 2246, 2416, 2948, 3322, 4492, 5896, 6644, 8984, 10117, 11792, 12353, 13288, 17968, 20234, 24706, 26576, 40468, 49412, 75241, 80936, 98824, 111287, 150482, 161872, 169573, 197648, 222574, 300964, 339146, 445148, 601928, 678292, 827651, 890296, 1203856, 1356584, 1655302, 1780592, 1865303, 2713168, 3310604, 3730606, 6621208, 7461212, 11361391, 13242416, 14922424, 22722782, 29844848, 45445564, 90891128, 124975301, 181782256, 249950602, 499901204, 999802408, 1999604816]

約数ペア:

[(1, 1999604816), (2, 999802408), (4, 499901204), (8, 249950602), (11, 181782256), (16, 124975301), (22, 90891128), (44, 45445564), (67, 29844848), (88, 22722782), (134, 14922424), (151, 13242416), (176, 11361391), (268, 7461212), (302, 6621208), (536, 3730606), (604, 3310604), (737, 2713168), (1072, 1865303), (1123, 1780592), (1208, 1655302), (1474, 1356584), (1661, 1203856), (2246, 890296), (2416, 827651), (2948, 678292), (3322, 601928), (4492, 445148), (5896, 339146), (6644, 300964), (8984, 222574), (10117, 197648), (11792, 169573), (12353, 161872), (13288, 150482), (17968, 111287), (20234, 98824), (24706, 80936), (26576, 75241), (40468, 49412)]