80358760

素因数分解:

$2^3\times 5^1\times {\mathrm{257}}^1\times {\mathrm{7817}}^1$

素因数の和:8085

約数の個数: 32

約数和(自身を含む): 181533960

約数和(自身を除く): 101175200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 257, 514, 1028, 1285, 2056, 2570, 5140, 7817, 10280, 15634, 31268, 39085, 62536, 78170, 156340, 312680, 2008969, 4017938, 8035876, 10044845, 16071752, 20089690, 40179380, 80358760]

約数ペア:

[(1, 80358760), (2, 40179380), (4, 20089690), (5, 16071752), (8, 10044845), (10, 8035876), (20, 4017938), (40, 2008969), (257, 312680), (514, 156340), (1028, 78170), (1285, 62536), (2056, 39085), (2570, 31268), (5140, 15634), (7817, 10280)]