68888917340

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{874891}}^1$

素因数の和:875058

約数の個数: 48

約数和(自身を含む): 150509420544

約数和(自身を除く): 81620503204

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 127, 155, 254, 310, 508, 620, 635, 1270, 2540, 3937, 7874, 15748, 19685, 39370, 78740, 874891, 1749782, 3499564, 4374455, 8748910, 17497820, 27121621, 54243242, 108486484, 111111157, 135608105, 222222314, 271216210, 444444628, 542432420, 555555785, 1111111570, 2222223140, 3444445867, 6888891734, 13777783468, 17222229335, 34444458670, 68888917340]

約数ペア:

[(1, 68888917340), (2, 34444458670), (4, 17222229335), (5, 13777783468), (10, 6888891734), (20, 3444445867), (31, 2222223140), (62, 1111111570), (124, 555555785), (127, 542432420), (155, 444444628), (254, 271216210), (310, 222222314), (508, 135608105), (620, 111111157), (635, 108486484), (1270, 54243242), (2540, 27121621), (3937, 17497820), (7874, 8748910), (15748, 4374455), (19685, 3499564), (39370, 1749782), (78740, 874891)]