18115840

素因数分解:

$2^8\times 5^1\times {\mathrm{14153}}^1$

素因数の和:14174

約数の個数: 36

約数和(自身を含む): 43396164

約数和(自身を除く): 25280324

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 14153, 28306, 56612, 70765, 113224, 141530, 226448, 283060, 452896, 566120, 905792, 1132240, 1811584, 2264480, 3623168, 4528960, 9057920, 18115840]

約数ペア:

[(1, 18115840), (2, 9057920), (4, 4528960), (5, 3623168), (8, 2264480), (10, 1811584), (16, 1132240), (20, 905792), (32, 566120), (40, 452896), (64, 283060), (80, 226448), (128, 141530), (160, 113224), (256, 70765), (320, 56612), (640, 28306), (1280, 14153)]