72680240

素因数分解:

$2^4\times 5^1\times {\mathrm{908503}}^1$

素因数の和:908516

約数の個数: 20

約数和(自身を含む): 168981744

約数和(自身を除く): 96301504

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 908503, 1817006, 3634012, 4542515, 7268024, 9085030, 14536048, 18170060, 36340120, 72680240]

約数ペア:

[(1, 72680240), (2, 36340120), (4, 18170060), (5, 14536048), (8, 9085030), (10, 7268024), (16, 4542515), (20, 3634012), (40, 1817006), (80, 908503)]