80513920

素因数分解:

$2^7\times 5^1\times {\mathrm{125803}}^1$

素因数の和:125822

約数の個数: 32

約数和(自身を含む): 192480120

約数和(自身を除く): 111966200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 125803, 251606, 503212, 629015, 1006424, 1258030, 2012848, 2516060, 4025696, 5032120, 8051392, 10064240, 16102784, 20128480, 40256960, 80513920]

約数ペア:

[(1, 80513920), (2, 40256960), (4, 20128480), (5, 16102784), (8, 10064240), (10, 8051392), (16, 5032120), (20, 4025696), (32, 2516060), (40, 2012848), (64, 1258030), (80, 1006424), (128, 629015), (160, 503212), (320, 251606), (640, 125803)]