1456640

素因数分解:

$2^9\times 5^1\times {\mathrm{569}}^1$

素因数の和:592

約数の個数: 40

約数和(自身を含む): 3498660

約数和(自身を除く): 2042020

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 569, 640, 1138, 1280, 2276, 2560, 2845, 4552, 5690, 9104, 11380, 18208, 22760, 36416, 45520, 72832, 91040, 145664, 182080, 291328, 364160, 728320, 1456640]

約数ペア:

[(1, 1456640), (2, 728320), (4, 364160), (5, 291328), (8, 182080), (10, 145664), (16, 91040), (20, 72832), (32, 45520), (40, 36416), (64, 22760), (80, 18208), (128, 11380), (160, 9104), (256, 5690), (320, 4552), (512, 2845), (569, 2560), (640, 2276), (1138, 1280)]