20121528520

素因数分解:

$2^3\times 5^1\times {\mathrm{503038213}}^1$

素因数の和:503038224

約数の個数: 16

約数和(自身を含む): 45273439260

約数和(自身を除く): 25151910740

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 503038213, 1006076426, 2012152852, 2515191065, 4024305704, 5030382130, 10060764260, 20121528520]

約数ペア:

[(1, 20121528520), (2, 10060764260), (4, 5030382130), (5, 4024305704), (8, 2515191065), (10, 2012152852), (20, 1006076426), (40, 503038213)]