15520721965

素因数分解:

$5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1\times {\mathrm{5413}}^1$

素因数の和:5582

約数の個数: 64

約数和(自身を含む): 23201372160

約数和(自身を除く): 7680650195

約数列:

[1, 5, 7, 17, 35, 61, 79, 85, 119, 305, 395, 427, 553, 595, 1037, 1343, 2135, 2765, 4819, 5185, 5413, 6715, 7259, 9401, 24095, 27065, 33733, 36295, 37891, 47005, 81923, 92021, 168665, 189455, 330193, 409615, 427627, 460105, 573461, 644147, 1650965, 2138135, 2311351, 2867305, 2993389, 3220735, 5613281, 7269659, 11556755, 14966945, 26085247, 28066405, 36348295, 39292967, 50887613, 130426235, 182596729, 196464835, 254438065, 443449199, 912983645, 2217245995, 3104144393, 15520721965]

約数ペア:

[(1, 15520721965), (5, 3104144393), (7, 2217245995), (17, 912983645), (35, 443449199), (61, 254438065), (79, 196464835), (85, 182596729), (119, 130426235), (305, 50887613), (395, 39292967), (427, 36348295), (553, 28066405), (595, 26085247), (1037, 14966945), (1343, 11556755), (2135, 7269659), (2765, 5613281), (4819, 3220735), (5185, 2993389), (5413, 2867305), (6715, 2311351), (7259, 2138135), (9401, 1650965), (24095, 644147), (27065, 573461), (33733, 460105), (36295, 427627), (37891, 409615), (47005, 330193), (81923, 189455), (92021, 168665)]