281050880

素因数分解:

$2^8\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19961}}^1$

素因数の和:19993

約数の個数: 72

約数和(自身を含む): 734441904

約数和(自身を除く): 453391024

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 128, 160, 176, 220, 256, 320, 352, 440, 640, 704, 880, 1280, 1408, 1760, 2816, 3520, 7040, 14080, 19961, 39922, 79844, 99805, 159688, 199610, 219571, 319376, 399220, 439142, 638752, 798440, 878284, 1097855, 1277504, 1596880, 1756568, 2195710, 2555008, 3193760, 3513136, 4391420, 5110016, 6387520, 7026272, 8782840, 12775040, 14052544, 17565680, 25550080, 28105088, 35131360, 56210176, 70262720, 140525440, 281050880]

約数ペア:

[(1, 281050880), (2, 140525440), (4, 70262720), (5, 56210176), (8, 35131360), (10, 28105088), (11, 25550080), (16, 17565680), (20, 14052544), (22, 12775040), (32, 8782840), (40, 7026272), (44, 6387520), (55, 5110016), (64, 4391420), (80, 3513136), (88, 3193760), (110, 2555008), (128, 2195710), (160, 1756568), (176, 1596880), (220, 1277504), (256, 1097855), (320, 878284), (352, 798440), (440, 638752), (640, 439142), (704, 399220), (880, 319376), (1280, 219571), (1408, 199610), (1760, 159688), (2816, 99805), (3520, 79844), (7040, 39922), (14080, 19961)]