1287560060

素因数分解:

$2^2\times 5^1\times {\mathrm{64378003}}^1$

素因数の和:64378012

約数の個数: 12

約数和(自身を含む): 2703876168

約数和(自身を除く): 1416316108

約数列:

[1, 2, 4, 5, 10, 20, 64378003, 128756006, 257512012, 321890015, 643780030, 1287560060]

約数ペア:

[(1, 1287560060), (2, 643780030), (4, 321890015), (5, 257512012), (10, 128756006), (20, 64378003)]