157536640

素因数分解:

$2^7\times 5^1\times {\mathrm{246151}}^1$

素因数の和:246170

約数の個数: 32

約数和(自身を含む): 376612560

約数和(自身を除く): 219075920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 246151, 492302, 984604, 1230755, 1969208, 2461510, 3938416, 4923020, 7876832, 9846040, 15753664, 19692080, 31507328, 39384160, 78768320, 157536640]

約数ペア:

[(1, 157536640), (2, 78768320), (4, 39384160), (5, 31507328), (8, 19692080), (10, 15753664), (16, 9846040), (20, 7876832), (32, 4923020), (40, 3938416), (64, 2461510), (80, 1969208), (128, 1230755), (160, 984604), (320, 492302), (640, 246151)]