81344704

素因数分解:

$2^6\times 7^2\times {\mathrm{25939}}^1$

素因数の和:25965

約数の個数: 42

約数和(自身を含む): 187779660

約数和(自身を除く): 106434956

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 64, 98, 112, 196, 224, 392, 448, 784, 1568, 3136, 25939, 51878, 103756, 181573, 207512, 363146, 415024, 726292, 830048, 1271011, 1452584, 1660096, 2542022, 2905168, 5084044, 5810336, 10168088, 11620672, 20336176, 40672352, 81344704]

約数ペア:

[(1, 81344704), (2, 40672352), (4, 20336176), (7, 11620672), (8, 10168088), (14, 5810336), (16, 5084044), (28, 2905168), (32, 2542022), (49, 1660096), (56, 1452584), (64, 1271011), (98, 830048), (112, 726292), (196, 415024), (224, 363146), (392, 207512), (448, 181573), (784, 103756), (1568, 51878), (3136, 25939)]