515880520

素因数分解:

$2^3\times 5^1\times {\mathrm{12897013}}^1$

素因数の和:12897024

約数の個数: 16

約数和(自身を含む): 1160731260

約数和(自身を除く): 644850740

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 12897013, 25794026, 51588052, 64485065, 103176104, 128970130, 257940260, 515880520]

約数ペア:

[(1, 515880520), (2, 257940260), (4, 128970130), (5, 103176104), (8, 64485065), (10, 51588052), (20, 25794026), (40, 12897013)]