80515520

素因数分解:

$2^6\times 5^1\times {\mathrm{251611}}^1$

素因数の和:251628

約数の個数: 28

約数和(自身を含む): 191728344

約数和(自身を除く): 111212824

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 251611, 503222, 1006444, 1258055, 2012888, 2516110, 4025776, 5032220, 8051552, 10064440, 16103104, 20128880, 40257760, 80515520]

約数ペア:

[(1, 80515520), (2, 40257760), (4, 20128880), (5, 16103104), (8, 10064440), (10, 8051552), (16, 5032220), (20, 4025776), (32, 2516110), (40, 2012888), (64, 1258055), (80, 1006444), (160, 503222), (320, 251611)]