280168343

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{103}}^1\times {\mathrm{421}}^1$

素因数の和:615

約数の個数: 32

約数和(自身を含む): 353912832

約数和(自身を除く): 73744489

約数列:

[1, 7, 13, 71, 91, 103, 421, 497, 721, 923, 1339, 2947, 5473, 6461, 7313, 9373, 29891, 38311, 43363, 51191, 95069, 209237, 303541, 388583, 563719, 665483, 2720081, 3078773, 3946033, 21551411, 40024049, 280168343]

約数ペア:

[(1, 280168343), (7, 40024049), (13, 21551411), (71, 3946033), (91, 3078773), (103, 2720081), (421, 665483), (497, 563719), (721, 388583), (923, 303541), (1339, 209237), (2947, 95069), (5473, 51191), (6461, 43363), (7313, 38311), (9373, 29891)]