85240520

素因数分解:

$2^3\times 5^1\times {\mathrm{2131013}}^1$

素因数の和:2131024

約数の個数: 16

約数和(自身を含む): 191791260

約数和(自身を除く): 106550740

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2131013, 4262026, 8524052, 10655065, 17048104, 21310130, 42620260, 85240520]

約数ペア:

[(1, 85240520), (2, 42620260), (4, 21310130), (5, 17048104), (8, 10655065), (10, 8524052), (20, 4262026), (40, 2131013)]