20178027436

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{882061}}^1$

素因数の和:882134

約数の個数: 48

約数和(自身を含む): 43468015360

約数和(自身を除く): 23289987924

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 43, 76, 86, 133, 172, 266, 301, 532, 602, 817, 1204, 1634, 3268, 5719, 11438, 22876, 882061, 1764122, 3528244, 6174427, 12348854, 16759159, 24697708, 33518318, 37928623, 67036636, 75857246, 117314113, 151714492, 234628226, 265500361, 469256452, 531000722, 720643837, 1062001444, 1441287674, 2882575348, 5044506859, 10089013718, 20178027436]

約数ペア:

[(1, 20178027436), (2, 10089013718), (4, 5044506859), (7, 2882575348), (14, 1441287674), (19, 1062001444), (28, 720643837), (38, 531000722), (43, 469256452), (76, 265500361), (86, 234628226), (133, 151714492), (172, 117314113), (266, 75857246), (301, 67036636), (532, 37928623), (602, 33518318), (817, 24697708), (1204, 16759159), (1634, 12348854), (3268, 6174427), (5719, 3528244), (11438, 1764122), (22876, 882061)]