208990060

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{109}}^1\times {\mathrm{2591}}^1$

素因数の和:2746

約数の個数: 48

約数和(自身を含む): 455051520

約数和(自身を除く): 246061460

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 109, 148, 185, 218, 370, 436, 545, 740, 1090, 2180, 2591, 4033, 5182, 8066, 10364, 12955, 16132, 20165, 25910, 40330, 51820, 80660, 95867, 191734, 282419, 383468, 479335, 564838, 958670, 1129676, 1412095, 1917340, 2824190, 5648380, 10449503, 20899006, 41798012, 52247515, 104495030, 208990060]

約数ペア:

[(1, 208990060), (2, 104495030), (4, 52247515), (5, 41798012), (10, 20899006), (20, 10449503), (37, 5648380), (74, 2824190), (109, 1917340), (148, 1412095), (185, 1129676), (218, 958670), (370, 564838), (436, 479335), (545, 383468), (740, 282419), (1090, 191734), (2180, 95867), (2591, 80660), (4033, 51820), (5182, 40330), (8066, 25910), (10364, 20165), (12955, 16132)]