40008560

素因数分解:

$2^4\times 5^1\times {\mathrm{500107}}^1$

素因数の和:500120

約数の個数: 20

約数和(自身を含む): 93020088

約数和(自身を除く): 53011528

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 500107, 1000214, 2000428, 2500535, 4000856, 5001070, 8001712, 10002140, 20004280, 40008560]

約数ペア:

[(1, 40008560), (2, 20004280), (4, 10002140), (5, 8001712), (8, 5001070), (10, 4000856), (16, 2500535), (20, 2000428), (40, 1000214), (80, 500107)]