79800520

素因数分解:

$2^3\times 5^1\times {\mathrm{1995013}}^1$

素因数の和:1995024

約数の個数: 16

約数和(自身を含む): 179551260

約数和(自身を除く): 99750740

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1995013, 3990026, 7980052, 9975065, 15960104, 19950130, 39900260, 79800520]

約数ペア:

[(1, 79800520), (2, 39900260), (4, 19950130), (5, 15960104), (8, 9975065), (10, 7980052), (20, 3990026), (40, 1995013)]