81110080

素因数分解:

$2^6\times 5^1\times {\mathrm{253469}}^1$

素因数の和:253486

約数の個数: 28

約数和(自身を含む): 193144140

約数和(自身を除く): 112034060

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 253469, 506938, 1013876, 1267345, 2027752, 2534690, 4055504, 5069380, 8111008, 10138760, 16222016, 20277520, 40555040, 81110080]

約数ペア:

[(1, 81110080), (2, 40555040), (4, 20277520), (5, 16222016), (8, 10138760), (10, 8111008), (16, 5069380), (20, 4055504), (32, 2534690), (40, 2027752), (64, 1267345), (80, 1013876), (160, 506938), (320, 253469)]