20249945984

素因数分解:

$2^7\times {\mathrm{31}}^2\times {\mathrm{164623}}^1$

素因数の和:164699

約数の個数: 48

約数和(自身を含む): 41685266160

約数和(自身を除く): 21435320176

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 124, 128, 248, 496, 961, 992, 1922, 1984, 3844, 3968, 7688, 15376, 30752, 61504, 123008, 164623, 329246, 658492, 1316984, 2633968, 5103313, 5267936, 10206626, 10535872, 20413252, 21071744, 40826504, 81653008, 158202703, 163306016, 316405406, 326612032, 632810812, 653224064, 1265621624, 2531243248, 5062486496, 10124972992, 20249945984]

約数ペア:

[(1, 20249945984), (2, 10124972992), (4, 5062486496), (8, 2531243248), (16, 1265621624), (31, 653224064), (32, 632810812), (62, 326612032), (64, 316405406), (124, 163306016), (128, 158202703), (248, 81653008), (496, 40826504), (961, 21071744), (992, 20413252), (1922, 10535872), (1984, 10206626), (3844, 5267936), (3968, 5103313), (7688, 2633968), (15376, 1316984), (30752, 658492), (61504, 329246), (123008, 164623)]