65080240

素因数分解:

$2^4\times 5^1\times {\mathrm{813503}}^1$

素因数の和:813516

約数の個数: 20

約数和(自身を含む): 151311744

約数和(自身を除く): 86231504

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 813503, 1627006, 3254012, 4067515, 6508024, 8135030, 13016048, 16270060, 32540120, 65080240]

約数ペア:

[(1, 65080240), (2, 32540120), (4, 16270060), (5, 13016048), (8, 8135030), (10, 6508024), (16, 4067515), (20, 3254012), (40, 1627006), (80, 813503)]