165000520

素因数分解:

$2^3\times 5^1\times {\mathrm{4125013}}^1$

素因数の和:4125024

約数の個数: 16

約数和(自身を含む): 371251260

約数和(自身を除く): 206250740

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 4125013, 8250026, 16500052, 20625065, 33000104, 41250130, 82500260, 165000520]

約数ペア:

[(1, 165000520), (2, 82500260), (4, 41250130), (5, 33000104), (8, 20625065), (10, 16500052), (20, 8250026), (40, 4125013)]