81521580

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{2897}}^1$

素因数の和:2983

約数の個数: 96

約数和(自身を含む): 264854016

約数和(自身を除く): 183332436

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 67, 70, 84, 105, 134, 140, 201, 210, 268, 335, 402, 420, 469, 670, 804, 938, 1005, 1340, 1407, 1876, 2010, 2345, 2814, 2897, 4020, 4690, 5628, 5794, 7035, 8691, 9380, 11588, 14070, 14485, 17382, 20279, 28140, 28970, 34764, 40558, 43455, 57940, 60837, 81116, 86910, 101395, 121674, 173820, 194099, 202790, 243348, 304185, 388198, 405580, 582297, 608370, 776396, 970495, 1164594, 1216740, 1358693, 1940990, 2329188, 2717386, 2911485, 3881980, 4076079, 5434772, 5822970, 6793465, 8152158, 11645940, 13586930, 16304316, 20380395, 27173860, 40760790, 81521580]

約数ペア:

[(1, 81521580), (2, 40760790), (3, 27173860), (4, 20380395), (5, 16304316), (6, 13586930), (7, 11645940), (10, 8152158), (12, 6793465), (14, 5822970), (15, 5434772), (20, 4076079), (21, 3881980), (28, 2911485), (30, 2717386), (35, 2329188), (42, 1940990), (60, 1358693), (67, 1216740), (70, 1164594), (84, 970495), (105, 776396), (134, 608370), (140, 582297), (201, 405580), (210, 388198), (268, 304185), (335, 243348), (402, 202790), (420, 194099), (469, 173820), (670, 121674), (804, 101395), (938, 86910), (1005, 81116), (1340, 60837), (1407, 57940), (1876, 43455), (2010, 40558), (2345, 34764), (2814, 28970), (2897, 28140), (4020, 20279), (4690, 17382), (5628, 14485), (5794, 14070), (7035, 11588), (8691, 9380)]