20120120

素因数分解:

$2^3\times 5^1\times {\mathrm{503003}}^1$

素因数の和:503014

約数の個数: 16

約数和(自身を含む): 45270360

約数和(自身を除く): 25150240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 503003, 1006006, 2012012, 2515015, 4024024, 5030030, 10060060, 20120120]

約数ペア:

[(1, 20120120), (2, 10060060), (4, 5030030), (5, 4024024), (8, 2515015), (10, 2012012), (20, 1006006), (40, 503003)]