20173074640

素因数分解:

$2^4\times 5^1\times {\mathrm{89}}^1\times {\mathrm{137}}^1\times {\mathrm{20681}}^1$

素因数の和:20920

約数の個数: 80

約数和(自身を含む): 47777901840

約数和(自身を除く): 27604827200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 89, 137, 178, 274, 356, 445, 548, 685, 712, 890, 1096, 1370, 1424, 1780, 2192, 2740, 3560, 5480, 7120, 10960, 12193, 20681, 24386, 41362, 48772, 60965, 82724, 97544, 103405, 121930, 165448, 195088, 206810, 243860, 330896, 413620, 487720, 827240, 975440, 1654480, 1840609, 2833297, 3681218, 5666594, 7362436, 9203045, 11333188, 14166485, 14724872, 18406090, 22666376, 28332970, 29449744, 36812180, 45332752, 56665940, 73624360, 113331880, 147248720, 226663760, 252163433, 504326866, 1008653732, 1260817165, 2017307464, 2521634330, 4034614928, 5043268660, 10086537320, 20173074640]

約数ペア:

[(1, 20173074640), (2, 10086537320), (4, 5043268660), (5, 4034614928), (8, 2521634330), (10, 2017307464), (16, 1260817165), (20, 1008653732), (40, 504326866), (80, 252163433), (89, 226663760), (137, 147248720), (178, 113331880), (274, 73624360), (356, 56665940), (445, 45332752), (548, 36812180), (685, 29449744), (712, 28332970), (890, 22666376), (1096, 18406090), (1370, 14724872), (1424, 14166485), (1780, 11333188), (2192, 9203045), (2740, 7362436), (3560, 5666594), (5480, 3681218), (7120, 2833297), (10960, 1840609), (12193, 1654480), (20681, 975440), (24386, 827240), (41362, 487720), (48772, 413620), (60965, 330896), (82724, 243860), (97544, 206810), (103405, 195088), (121930, 165448)]