2680240

素因数分解:

$2^4\times 5^1\times {\mathrm{33503}}^1$

素因数の和:33516

約数の個数: 20

約数和(自身を含む): 6231744

約数和(自身を除く): 3551504

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 33503, 67006, 134012, 167515, 268024, 335030, 536048, 670060, 1340120, 2680240]

約数ペア:

[(1, 2680240), (2, 1340120), (4, 670060), (5, 536048), (8, 335030), (10, 268024), (16, 167515), (20, 134012), (40, 67006), (80, 33503)]