39749180

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{137}}^1\times {\mathrm{163}}^1$

素因数の和:398

約数の個数: 48

約数和(自身を含む): 85548960

約数和(自身を除く): 45799780

約数列:

[1, 2, 4, 5, 10, 20, 89, 137, 163, 178, 274, 326, 356, 445, 548, 652, 685, 815, 890, 1370, 1630, 1780, 2740, 3260, 12193, 14507, 22331, 24386, 29014, 44662, 48772, 58028, 60965, 72535, 89324, 111655, 121930, 145070, 223310, 243860, 290140, 446620, 1987459, 3974918, 7949836, 9937295, 19874590, 39749180]

約数ペア:

[(1, 39749180), (2, 19874590), (4, 9937295), (5, 7949836), (10, 3974918), (20, 1987459), (89, 446620), (137, 290140), (163, 243860), (178, 223310), (274, 145070), (326, 121930), (356, 111655), (445, 89324), (548, 72535), (652, 60965), (685, 58028), (815, 48772), (890, 44662), (1370, 29014), (1630, 24386), (1780, 22331), (2740, 14507), (3260, 12193)]