138869744

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{667643}}^1$

素因数の和:667664

約数の個数: 20

約数和(自身を含む): 289757496

約数和(自身を除く): 150887752

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 667643, 1335286, 2670572, 5341144, 8679359, 10682288, 17358718, 34717436, 69434872, 138869744]

約数ペア:

[(1, 138869744), (2, 69434872), (4, 34717436), (8, 17358718), (13, 10682288), (16, 8679359), (26, 5341144), (52, 2670572), (104, 1335286), (208, 667643)]