256422803

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{3449}}^1$

素因数の和:3531

約数の個数: 32

約数和(自身を含む): 340032000

約数和(自身を除く): 83609197

約数列:

[1, 7, 13, 19, 43, 91, 133, 247, 301, 559, 817, 1729, 3449, 3913, 5719, 10621, 24143, 44837, 65531, 74347, 148307, 313859, 458717, 851903, 1038149, 1927991, 2817833, 5963321, 13495937, 19724831, 36631829, 256422803]

約数ペア:

[(1, 256422803), (7, 36631829), (13, 19724831), (19, 13495937), (43, 5963321), (91, 2817833), (133, 1927991), (247, 1038149), (301, 851903), (559, 458717), (817, 313859), (1729, 148307), (3449, 74347), (3913, 65531), (5719, 44837), (10621, 24143)]