18496640

素因数分解:

$2^7\times 5^1\times {\mathrm{28901}}^1$

素因数の和:28920

約数の個数: 32

約数和(自身を含む): 44220060

約数和(自身を除く): 25723420

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 28901, 57802, 115604, 144505, 231208, 289010, 462416, 578020, 924832, 1156040, 1849664, 2312080, 3699328, 4624160, 9248320, 18496640]

約数ペア:

[(1, 18496640), (2, 9248320), (4, 4624160), (5, 3699328), (8, 2312080), (10, 1849664), (16, 1156040), (20, 924832), (32, 578020), (40, 462416), (64, 289010), (80, 231208), (128, 144505), (160, 115604), (320, 57802), (640, 28901)]