65040520

素因数分解:

$2^3\times 5^1\times {\mathrm{1626013}}^1$

素因数の和:1626024

約数の個数: 16

約数和(自身を含む): 146341260

約数和(自身を除く): 81300740

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1626013, 3252026, 6504052, 8130065, 13008104, 16260130, 32520260, 65040520]

約数ペア:

[(1, 65040520), (2, 32520260), (4, 16260130), (5, 13008104), (8, 8130065), (10, 6504052), (20, 3252026), (40, 1626013)]