20169968

素因数分解:

$2^4\times 7^2\times {\mathrm{13}}^1\times {\mathrm{1979}}^1$

素因数の和:2014

約数の個数: 60

約数和(自身を含む): 48981240

約数和(自身を除く): 28811272

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 49, 52, 56, 91, 98, 104, 112, 182, 196, 208, 364, 392, 637, 728, 784, 1274, 1456, 1979, 2548, 3958, 5096, 7916, 10192, 13853, 15832, 25727, 27706, 31664, 51454, 55412, 96971, 102908, 110824, 180089, 193942, 205816, 221648, 360178, 387884, 411632, 720356, 775768, 1260623, 1440712, 1551536, 2521246, 2881424, 5042492, 10084984, 20169968]

約数ペア:

[(1, 20169968), (2, 10084984), (4, 5042492), (7, 2881424), (8, 2521246), (13, 1551536), (14, 1440712), (16, 1260623), (26, 775768), (28, 720356), (49, 411632), (52, 387884), (56, 360178), (91, 221648), (98, 205816), (104, 193942), (112, 180089), (182, 110824), (196, 102908), (208, 96971), (364, 55412), (392, 51454), (637, 31664), (728, 27706), (784, 25727), (1274, 15832), (1456, 13853), (1979, 10192), (2548, 7916), (3958, 5096)]