1285280120

素因数分解:

$2^3\times 5^1\times {\mathrm{32132003}}^1$

素因数の和:32132014

約数の個数: 16

約数和(自身を含む): 2891880360

約数和(自身を除く): 1606600240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 32132003, 64264006, 128528012, 160660015, 257056024, 321320030, 642640060, 1285280120]

約数ペア:

[(1, 1285280120), (2, 642640060), (4, 321320030), (5, 257056024), (8, 160660015), (10, 128528012), (20, 64264006), (40, 32132003)]