388640336

素因数分解:

$2^4\times 7^1\times {\mathrm{3470003}}^1$

素因数の和:3470018

約数の個数: 20

約数和(自身を含む): 860560992

約数和(自身を除く): 471920656

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 3470003, 6940006, 13880012, 24290021, 27760024, 48580042, 55520048, 97160084, 194320168, 388640336]

約数ペア:

[(1, 388640336), (2, 194320168), (4, 97160084), (7, 55520048), (8, 48580042), (14, 27760024), (16, 24290021), (28, 13880012), (56, 6940006), (112, 3470003)]